diff --git a/src/compare/diff.rs b/src/compare/diff.rs
index 3b7a382..6475a05 100644
--- a/src/compare/diff.rs
+++ b/src/compare/diff.rs
@@ -1575,7 +1575,7 @@ fn compare_example_block<'b, 's>(
         [],
         (
             EmacsField::Required(":value"),
-            |r| Some(r.get_contents()),
+            |r| Some(r.get_value()),
             compare_property_quoted_string
         ),
         (
@@ -1653,7 +1653,7 @@ fn compare_export_block<'b, 's>(
         ),
         (
             EmacsField::Required(":value"),
-            |r| Some(r.get_contents()),
+            |r| Some(r.get_value()),
             compare_property_quoted_string
         )
     ) {
@@ -1701,7 +1701,7 @@ fn compare_src_block<'b, 's>(
         ),
         (
             EmacsField::Required(":value"),
-            |r| Some(r.get_contents()),
+            |r| Some(r.get_value()),
             compare_property_quoted_string
         ),
         (
diff --git a/src/parser/lesser_block.rs b/src/parser/lesser_block.rs
index 1241cf2..a09ce0d 100644
--- a/src/parser/lesser_block.rs
+++ b/src/parser/lesser_block.rs
@@ -236,7 +236,7 @@ where
             retain_labels,
             use_labels,
             label_format,
-            contents: Into::<&str>::into(contents),
+            value: Into::<&str>::into(contents),
         },
     ))
 }
@@ -292,7 +292,7 @@ where
             ),
             export_type: export_type.map(Into::<&str>::into),
             data: parameters.map(Into::<&str>::into),
-            contents: Into::<&str>::into(contents),
+            value: Into::<&str>::into(contents),
         },
     ))
 }
@@ -371,7 +371,7 @@ where
             retain_labels,
             use_labels,
             label_format,
-            contents: Into::<&str>::into(contents),
+            value: Into::<&str>::into(contents),
         },
     ))
 }
diff --git a/src/types/ast_node.rs b/src/types/ast_node.rs
index 026931a..75749d3 100644
--- a/src/types/ast_node.rs
+++ b/src/types/ast_node.rs
@@ -322,4 +322,130 @@ impl<'r, 's> StandardProperties<'s> for AstNode<'r, 's> {
             AstNode::Timestamp(inner) => inner.get_source(),
         }
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        match self {
+            AstNode::Document(inner) => inner.get_contents(),
+            AstNode::Heading(inner) => inner.get_contents(),
+            AstNode::Section(inner) => inner.get_contents(),
+            AstNode::Paragraph(inner) => inner.get_contents(),
+            AstNode::PlainList(inner) => inner.get_contents(),
+            AstNode::PlainListItem(inner) => inner.get_contents(),
+            AstNode::CenterBlock(inner) => inner.get_contents(),
+            AstNode::QuoteBlock(inner) => inner.get_contents(),
+            AstNode::SpecialBlock(inner) => inner.get_contents(),
+            AstNode::DynamicBlock(inner) => inner.get_contents(),
+            AstNode::FootnoteDefinition(inner) => inner.get_contents(),
+            AstNode::Comment(inner) => inner.get_contents(),
+            AstNode::Drawer(inner) => inner.get_contents(),
+            AstNode::PropertyDrawer(inner) => inner.get_contents(),
+            AstNode::NodeProperty(inner) => inner.get_contents(),
+            AstNode::Table(inner) => inner.get_contents(),
+            AstNode::TableRow(inner) => inner.get_contents(),
+            AstNode::VerseBlock(inner) => inner.get_contents(),
+            AstNode::CommentBlock(inner) => inner.get_contents(),
+            AstNode::ExampleBlock(inner) => inner.get_contents(),
+            AstNode::ExportBlock(inner) => inner.get_contents(),
+            AstNode::SrcBlock(inner) => inner.get_contents(),
+            AstNode::Clock(inner) => inner.get_contents(),
+            AstNode::DiarySexp(inner) => inner.get_contents(),
+            AstNode::Planning(inner) => inner.get_contents(),
+            AstNode::FixedWidthArea(inner) => inner.get_contents(),
+            AstNode::HorizontalRule(inner) => inner.get_contents(),
+            AstNode::Keyword(inner) => inner.get_contents(),
+            AstNode::BabelCall(inner) => inner.get_contents(),
+            AstNode::LatexEnvironment(inner) => inner.get_contents(),
+            AstNode::Bold(inner) => inner.get_contents(),
+            AstNode::Italic(inner) => inner.get_contents(),
+            AstNode::Underline(inner) => inner.get_contents(),
+            AstNode::StrikeThrough(inner) => inner.get_contents(),
+            AstNode::Code(inner) => inner.get_contents(),
+            AstNode::Verbatim(inner) => inner.get_contents(),
+            AstNode::PlainText(inner) => inner.get_contents(),
+            AstNode::RegularLink(inner) => inner.get_contents(),
+            AstNode::RadioLink(inner) => inner.get_contents(),
+            AstNode::RadioTarget(inner) => inner.get_contents(),
+            AstNode::PlainLink(inner) => inner.get_contents(),
+            AstNode::AngleLink(inner) => inner.get_contents(),
+            AstNode::OrgMacro(inner) => inner.get_contents(),
+            AstNode::Entity(inner) => inner.get_contents(),
+            AstNode::LatexFragment(inner) => inner.get_contents(),
+            AstNode::ExportSnippet(inner) => inner.get_contents(),
+            AstNode::FootnoteReference(inner) => inner.get_contents(),
+            AstNode::Citation(inner) => inner.get_contents(),
+            AstNode::CitationReference(inner) => inner.get_contents(),
+            AstNode::InlineBabelCall(inner) => inner.get_contents(),
+            AstNode::InlineSourceBlock(inner) => inner.get_contents(),
+            AstNode::LineBreak(inner) => inner.get_contents(),
+            AstNode::Target(inner) => inner.get_contents(),
+            AstNode::StatisticsCookie(inner) => inner.get_contents(),
+            AstNode::Subscript(inner) => inner.get_contents(),
+            AstNode::Superscript(inner) => inner.get_contents(),
+            AstNode::TableCell(inner) => inner.get_contents(),
+            AstNode::Timestamp(inner) => inner.get_contents(),
+        }
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        match self {
+            AstNode::Document(inner) => inner.get_post_blank(),
+            AstNode::Heading(inner) => inner.get_post_blank(),
+            AstNode::Section(inner) => inner.get_post_blank(),
+            AstNode::Paragraph(inner) => inner.get_post_blank(),
+            AstNode::PlainList(inner) => inner.get_post_blank(),
+            AstNode::PlainListItem(inner) => inner.get_post_blank(),
+            AstNode::CenterBlock(inner) => inner.get_post_blank(),
+            AstNode::QuoteBlock(inner) => inner.get_post_blank(),
+            AstNode::SpecialBlock(inner) => inner.get_post_blank(),
+            AstNode::DynamicBlock(inner) => inner.get_post_blank(),
+            AstNode::FootnoteDefinition(inner) => inner.get_post_blank(),
+            AstNode::Comment(inner) => inner.get_post_blank(),
+            AstNode::Drawer(inner) => inner.get_post_blank(),
+            AstNode::PropertyDrawer(inner) => inner.get_post_blank(),
+            AstNode::NodeProperty(inner) => inner.get_post_blank(),
+            AstNode::Table(inner) => inner.get_post_blank(),
+            AstNode::TableRow(inner) => inner.get_post_blank(),
+            AstNode::VerseBlock(inner) => inner.get_post_blank(),
+            AstNode::CommentBlock(inner) => inner.get_post_blank(),
+            AstNode::ExampleBlock(inner) => inner.get_post_blank(),
+            AstNode::ExportBlock(inner) => inner.get_post_blank(),
+            AstNode::SrcBlock(inner) => inner.get_post_blank(),
+            AstNode::Clock(inner) => inner.get_post_blank(),
+            AstNode::DiarySexp(inner) => inner.get_post_blank(),
+            AstNode::Planning(inner) => inner.get_post_blank(),
+            AstNode::FixedWidthArea(inner) => inner.get_post_blank(),
+            AstNode::HorizontalRule(inner) => inner.get_post_blank(),
+            AstNode::Keyword(inner) => inner.get_post_blank(),
+            AstNode::BabelCall(inner) => inner.get_post_blank(),
+            AstNode::LatexEnvironment(inner) => inner.get_post_blank(),
+            AstNode::Bold(inner) => inner.get_post_blank(),
+            AstNode::Italic(inner) => inner.get_post_blank(),
+            AstNode::Underline(inner) => inner.get_post_blank(),
+            AstNode::StrikeThrough(inner) => inner.get_post_blank(),
+            AstNode::Code(inner) => inner.get_post_blank(),
+            AstNode::Verbatim(inner) => inner.get_post_blank(),
+            AstNode::PlainText(inner) => inner.get_post_blank(),
+            AstNode::RegularLink(inner) => inner.get_post_blank(),
+            AstNode::RadioLink(inner) => inner.get_post_blank(),
+            AstNode::RadioTarget(inner) => inner.get_post_blank(),
+            AstNode::PlainLink(inner) => inner.get_post_blank(),
+            AstNode::AngleLink(inner) => inner.get_post_blank(),
+            AstNode::OrgMacro(inner) => inner.get_post_blank(),
+            AstNode::Entity(inner) => inner.get_post_blank(),
+            AstNode::LatexFragment(inner) => inner.get_post_blank(),
+            AstNode::ExportSnippet(inner) => inner.get_post_blank(),
+            AstNode::FootnoteReference(inner) => inner.get_post_blank(),
+            AstNode::Citation(inner) => inner.get_post_blank(),
+            AstNode::CitationReference(inner) => inner.get_post_blank(),
+            AstNode::InlineBabelCall(inner) => inner.get_post_blank(),
+            AstNode::InlineSourceBlock(inner) => inner.get_post_blank(),
+            AstNode::LineBreak(inner) => inner.get_post_blank(),
+            AstNode::Target(inner) => inner.get_post_blank(),
+            AstNode::StatisticsCookie(inner) => inner.get_post_blank(),
+            AstNode::Subscript(inner) => inner.get_post_blank(),
+            AstNode::Superscript(inner) => inner.get_post_blank(),
+            AstNode::TableCell(inner) => inner.get_post_blank(),
+            AstNode::Timestamp(inner) => inner.get_post_blank(),
+        }
+    }
 }
diff --git a/src/types/document.rs b/src/types/document.rs
index 8328b72..ccb468a 100644
--- a/src/types/document.rs
+++ b/src/types/document.rs
@@ -57,18 +57,42 @@ impl<'s> StandardProperties<'s> for Document<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Section<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Heading<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> Heading<'s> {
@@ -126,4 +150,18 @@ impl<'s> StandardProperties<'s> for DocumentElement<'s> {
             DocumentElement::Section(inner) => inner.get_source(),
         }
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        match self {
+            DocumentElement::Heading(inner) => inner.get_contents(),
+            DocumentElement::Section(inner) => inner.get_contents(),
+        }
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        match self {
+            DocumentElement::Heading(inner) => inner.get_post_blank(),
+            DocumentElement::Section(inner) => inner.get_post_blank(),
+        }
+    }
 }
diff --git a/src/types/element.rs b/src/types/element.rs
index c079f6b..49e54d1 100644
--- a/src/types/element.rs
+++ b/src/types/element.rs
@@ -82,4 +82,62 @@ impl<'s> StandardProperties<'s> for Element<'s> {
             Element::LatexEnvironment(inner) => inner.get_source(),
         }
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        match self {
+            Element::Paragraph(inner) => inner.get_contents(),
+            Element::PlainList(inner) => inner.get_contents(),
+            Element::CenterBlock(inner) => inner.get_contents(),
+            Element::QuoteBlock(inner) => inner.get_contents(),
+            Element::SpecialBlock(inner) => inner.get_contents(),
+            Element::DynamicBlock(inner) => inner.get_contents(),
+            Element::FootnoteDefinition(inner) => inner.get_contents(),
+            Element::Comment(inner) => inner.get_contents(),
+            Element::Drawer(inner) => inner.get_contents(),
+            Element::PropertyDrawer(inner) => inner.get_contents(),
+            Element::Table(inner) => inner.get_contents(),
+            Element::VerseBlock(inner) => inner.get_contents(),
+            Element::CommentBlock(inner) => inner.get_contents(),
+            Element::ExampleBlock(inner) => inner.get_contents(),
+            Element::ExportBlock(inner) => inner.get_contents(),
+            Element::SrcBlock(inner) => inner.get_contents(),
+            Element::Clock(inner) => inner.get_contents(),
+            Element::DiarySexp(inner) => inner.get_contents(),
+            Element::Planning(inner) => inner.get_contents(),
+            Element::FixedWidthArea(inner) => inner.get_contents(),
+            Element::HorizontalRule(inner) => inner.get_contents(),
+            Element::Keyword(inner) => inner.get_contents(),
+            Element::BabelCall(inner) => inner.get_contents(),
+            Element::LatexEnvironment(inner) => inner.get_contents(),
+        }
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        match self {
+            Element::Paragraph(inner) => inner.get_post_blank(),
+            Element::PlainList(inner) => inner.get_post_blank(),
+            Element::CenterBlock(inner) => inner.get_post_blank(),
+            Element::QuoteBlock(inner) => inner.get_post_blank(),
+            Element::SpecialBlock(inner) => inner.get_post_blank(),
+            Element::DynamicBlock(inner) => inner.get_post_blank(),
+            Element::FootnoteDefinition(inner) => inner.get_post_blank(),
+            Element::Comment(inner) => inner.get_post_blank(),
+            Element::Drawer(inner) => inner.get_post_blank(),
+            Element::PropertyDrawer(inner) => inner.get_post_blank(),
+            Element::Table(inner) => inner.get_post_blank(),
+            Element::VerseBlock(inner) => inner.get_post_blank(),
+            Element::CommentBlock(inner) => inner.get_post_blank(),
+            Element::ExampleBlock(inner) => inner.get_post_blank(),
+            Element::ExportBlock(inner) => inner.get_post_blank(),
+            Element::SrcBlock(inner) => inner.get_post_blank(),
+            Element::Clock(inner) => inner.get_post_blank(),
+            Element::DiarySexp(inner) => inner.get_post_blank(),
+            Element::Planning(inner) => inner.get_post_blank(),
+            Element::FixedWidthArea(inner) => inner.get_post_blank(),
+            Element::HorizontalRule(inner) => inner.get_post_blank(),
+            Element::Keyword(inner) => inner.get_post_blank(),
+            Element::BabelCall(inner) => inner.get_post_blank(),
+            Element::LatexEnvironment(inner) => inner.get_post_blank(),
+        }
+    }
 }
diff --git a/src/types/greater_element.rs b/src/types/greater_element.rs
index e058b42..f459537 100644
--- a/src/types/greater_element.rs
+++ b/src/types/greater_element.rs
@@ -131,72 +131,168 @@ impl<'s> StandardProperties<'s> for PlainList<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for PlainListItem<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for CenterBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for QuoteBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for SpecialBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for DynamicBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for FootnoteDefinition<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Drawer<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for PropertyDrawer<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for NodeProperty<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Table<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for TableRow<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> PlainListItem<'s> {
diff --git a/src/types/lesser_element.rs b/src/types/lesser_element.rs
index 41097e4..3241a98 100644
--- a/src/types/lesser_element.rs
+++ b/src/types/lesser_element.rs
@@ -75,7 +75,7 @@ pub struct ExampleBlock<'s> {
     pub retain_labels: RetainLabels,
     pub use_labels: bool,
     pub label_format: Option<&'s str>,
-    pub contents: &'s str,
+    pub value: &'s str,
 }
 
 #[derive(Debug)]
@@ -84,7 +84,7 @@ pub struct ExportBlock<'s> {
     pub affiliated_keywords: AffiliatedKeywords<'s>,
     pub export_type: Option<&'s str>,
     pub data: Option<&'s str>,
-    pub contents: &'s str,
+    pub value: &'s str,
 }
 
 #[derive(Debug)]
@@ -99,7 +99,7 @@ pub struct SrcBlock<'s> {
     pub retain_labels: RetainLabels,
     pub use_labels: bool,
     pub label_format: Option<&'s str>,
-    pub contents: &'s str,
+    pub value: &'s str,
 }
 
 #[derive(Debug)]
@@ -198,92 +198,220 @@ impl<'s> StandardProperties<'s> for Paragraph<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for TableCell<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Comment<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for VerseBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 impl<'s> StandardProperties<'s> for CommentBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 impl<'s> StandardProperties<'s> for ExampleBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 impl<'s> StandardProperties<'s> for ExportBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 impl<'s> StandardProperties<'s> for SrcBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Clock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for DiarySexp<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Planning<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for FixedWidthArea<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for HorizontalRule<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Keyword<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for BabelCall<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for LatexEnvironment<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> Comment<'s> {
@@ -312,8 +440,8 @@ impl<'s> FixedWidthArea<'s> {
 
 impl<'s> ExampleBlock<'s> {
     /// Gets the contents of the lesser block, handling the escaping of lines with leading commas.
-    pub fn get_contents(&self) -> Cow<'s, str> {
-        lesser_block_content(self.contents).expect("This parser should never fail.")
+    pub fn get_value(&self) -> Cow<'s, str> {
+        lesser_block_content(self.value).expect("This parser should never fail.")
     }
 }
 
@@ -326,15 +454,15 @@ impl<'s> ExportBlock<'s> {
     }
 
     /// Gets the contents of the lesser block, handling the escaping of lines with leading commas.
-    pub fn get_contents(&self) -> Cow<'s, str> {
-        lesser_block_content(self.contents).expect("This parser should never fail.")
+    pub fn get_value(&self) -> Cow<'s, str> {
+        lesser_block_content(self.value).expect("This parser should never fail.")
     }
 }
 
 impl<'s> SrcBlock<'s> {
     /// Gets the contents of the lesser block, handling the escaping of lines with leading commas.
-    pub fn get_contents(&self) -> Cow<'s, str> {
-        lesser_block_content(self.contents).expect("This parser should never fail.")
+    pub fn get_value(&self) -> Cow<'s, str> {
+        lesser_block_content(self.value).expect("This parser should never fail.")
     }
 }
 
diff --git a/src/types/object.rs b/src/types/object.rs
index 9f38eb6..87a23b6 100644
--- a/src/types/object.rs
+++ b/src/types/object.rs
@@ -518,162 +518,378 @@ impl<'s> StandardProperties<'s> for Bold<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Italic<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Underline<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for StrikeThrough<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Code<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Verbatim<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for RegularLink<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for RadioLink<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for RadioTarget<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for PlainLink<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for AngleLink<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for OrgMacro<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Entity<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for LatexFragment<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for ExportSnippet<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for FootnoteReference<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Citation<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for CitationReference<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for InlineBabelCall<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for InlineSourceBlock<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for LineBreak<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Target<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for StatisticsCookie<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Subscript<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Superscript<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for Timestamp<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> StandardProperties<'s> for PlainText<'s> {
     fn get_source<'b>(&'b self) -> &'s str {
         self.source
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        todo!()
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        todo!()
+    }
 }
 
 impl<'s> Timestamp<'s> {
@@ -799,4 +1015,68 @@ impl<'s> StandardProperties<'s> for Object<'s> {
             Object::Timestamp(inner) => inner.get_source(),
         }
     }
+
+    fn get_contents(&'s self) -> &'s str {
+        match self {
+            Object::Bold(inner) => inner.get_contents(),
+            Object::Italic(inner) => inner.get_contents(),
+            Object::Underline(inner) => inner.get_contents(),
+            Object::StrikeThrough(inner) => inner.get_contents(),
+            Object::Code(inner) => inner.get_contents(),
+            Object::Verbatim(inner) => inner.get_contents(),
+            Object::PlainText(inner) => inner.get_contents(),
+            Object::RegularLink(inner) => inner.get_contents(),
+            Object::RadioLink(inner) => inner.get_contents(),
+            Object::RadioTarget(inner) => inner.get_contents(),
+            Object::PlainLink(inner) => inner.get_contents(),
+            Object::AngleLink(inner) => inner.get_contents(),
+            Object::OrgMacro(inner) => inner.get_contents(),
+            Object::Entity(inner) => inner.get_contents(),
+            Object::LatexFragment(inner) => inner.get_contents(),
+            Object::ExportSnippet(inner) => inner.get_contents(),
+            Object::FootnoteReference(inner) => inner.get_contents(),
+            Object::Citation(inner) => inner.get_contents(),
+            Object::CitationReference(inner) => inner.get_contents(),
+            Object::InlineBabelCall(inner) => inner.get_contents(),
+            Object::InlineSourceBlock(inner) => inner.get_contents(),
+            Object::LineBreak(inner) => inner.get_contents(),
+            Object::Target(inner) => inner.get_contents(),
+            Object::StatisticsCookie(inner) => inner.get_contents(),
+            Object::Subscript(inner) => inner.get_contents(),
+            Object::Superscript(inner) => inner.get_contents(),
+            Object::Timestamp(inner) => inner.get_contents(),
+        }
+    }
+
+    fn get_post_blank<'b>(&'b self) -> &'s str {
+        match self {
+            Object::Bold(inner) => inner.get_post_blank(),
+            Object::Italic(inner) => inner.get_post_blank(),
+            Object::Underline(inner) => inner.get_post_blank(),
+            Object::StrikeThrough(inner) => inner.get_post_blank(),
+            Object::Code(inner) => inner.get_post_blank(),
+            Object::Verbatim(inner) => inner.get_post_blank(),
+            Object::PlainText(inner) => inner.get_post_blank(),
+            Object::RegularLink(inner) => inner.get_post_blank(),
+            Object::RadioLink(inner) => inner.get_post_blank(),
+            Object::RadioTarget(inner) => inner.get_post_blank(),
+            Object::PlainLink(inner) => inner.get_post_blank(),
+            Object::AngleLink(inner) => inner.get_post_blank(),
+            Object::OrgMacro(inner) => inner.get_post_blank(),
+            Object::Entity(inner) => inner.get_post_blank(),
+            Object::LatexFragment(inner) => inner.get_post_blank(),
+            Object::ExportSnippet(inner) => inner.get_post_blank(),
+            Object::FootnoteReference(inner) => inner.get_post_blank(),
+            Object::Citation(inner) => inner.get_post_blank(),
+            Object::CitationReference(inner) => inner.get_post_blank(),
+            Object::InlineBabelCall(inner) => inner.get_post_blank(),
+            Object::InlineSourceBlock(inner) => inner.get_post_blank(),
+            Object::LineBreak(inner) => inner.get_post_blank(),
+            Object::Target(inner) => inner.get_post_blank(),
+            Object::StatisticsCookie(inner) => inner.get_post_blank(),
+            Object::Subscript(inner) => inner.get_post_blank(),
+            Object::Superscript(inner) => inner.get_post_blank(),
+            Object::Timestamp(inner) => inner.get_post_blank(),
+        }
+    }
 }
diff --git a/src/types/standard_properties.rs b/src/types/standard_properties.rs
index 4cd195a..e2ecc62 100644
--- a/src/types/standard_properties.rs
+++ b/src/types/standard_properties.rs
@@ -5,15 +5,15 @@ pub trait StandardProperties<'s> {
     /// This corresponds to :begin to :end in upstream org-mode's standard properties.
     fn get_source<'b>(&'b self) -> &'s str;
 
-    // Get the slice of the AST node's contents.
-    //
-    // This corresponds to :contents-begin to :contents-end
-    // fn get_contents(&'s self) -> &'s str;
+    /// Get the slice of the AST node's contents.
+    ///
+    /// This corresponds to :contents-begin to :contents-end
+    fn get_contents(&'s self) -> &'s str;
 
-    // Get the slice of the AST node's post-blank text.
-    //
-    // This is optional whitespace following the node.
-    // fn get_post_blank<'b>(&'b self) -> &'s str;
+    /// Get the slice of the AST node's post-blank text.
+    ///
+    /// This is optional whitespace following the node.
+    fn get_post_blank<'b>(&'b self) -> &'s str;
 }
 
 // TODO: Write some debugging code to alert when any of the unknown fields below are non-nil in our test data so we can see what these fields represent.