diff --git a/src/parser/affiliated_keyword.rs b/src/parser/affiliated_keyword.rs
new file mode 100644
index 0000000..cbd12d7
--- /dev/null
+++ b/src/parser/affiliated_keyword.rs
@@ -0,0 +1,38 @@
+use crate::types::Keyword;
+use crate::types::Object;
+use crate::types::PlainList;
+
+pub struct AffiliatedKeyword<'s> {
+    name: &'s str,
+}
+
+pub enum AffiliatedKeywordValue<'s> {
+    SingleString(&'s str),
+    ListOfStrings(Vec<&'s str>),
+    ListOfObjects(Vec<Object<'s>>),
+}
+
+pub trait GetAffiliatedKeywords<'s> {
+    type ItemIterator: Iterator<Item = &'s Keyword<'s>>;
+
+    fn get_affiliated_keywords<'r: 's>(&'r self) -> Self::ItemIterator;
+}
+
+pub trait HandleAffiliatedKeywords<'s> {
+    fn get_stuff(&self) -> &'s str;
+}
+
+impl<'s> GetAffiliatedKeywords<'s> for PlainList<'s> {
+    type ItemIterator = std::slice::Iter<'s, Keyword<'s>>;
+
+    fn get_affiliated_keywords<'r: 's>(&'r self) -> Self::ItemIterator {
+        self.affiliated_keywords.iter()
+    }
+}
+
+impl<'s, I: GetAffiliatedKeywords<'s>> HandleAffiliatedKeywords<'s> for I {
+    fn get_stuff(&self) -> &'s str {
+        self.get_affiliated_keywords().count();
+        todo!()
+    }
+}
diff --git a/src/parser/mod.rs b/src/parser/mod.rs
index 02dabf6..c9c2e6e 100644
--- a/src/parser/mod.rs
+++ b/src/parser/mod.rs
@@ -1,3 +1,4 @@
+mod affiliated_keyword;
 mod angle_link;
 mod babel_call;
 mod citation;
diff --git a/src/types/greater_element.rs b/src/types/greater_element.rs
index c66bfc1..d2aeab4 100644
--- a/src/types/greater_element.rs
+++ b/src/types/greater_element.rs
@@ -219,13 +219,3 @@ impl<'s> TableRow<'s> {
         }
     }
 }
-
-pub trait GetAffiliatedKeywords<'s> {
-    fn get_affiliated_keywords(&self) -> () {
-        // foo
-    }
-}
-
-// impl<'s> GetAffiliatedKeywords for PlainList<'s> {
-
-// }