diff --git a/notes/affiliated_keyword_investigation/run_test.bash b/notes/affiliated_keyword_investigation/run_test.bash
new file mode 100755
index 0000000..e040c21
--- /dev/null
+++ b/notes/affiliated_keyword_investigation/run_test.bash
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+#
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+file_path="${DIR}/test_document.org"
+
+INIT_SCRIPT=$(cat <<EOF
+(progn
+     (erase-buffer)
+     (require 'org)
+     (defun org-table-align () t)
+     (setq vc-handled-backends nil)
+     (find-file-read-only "/input/${file_path}")
+     (setq-default org-element-affiliated-keywords (list "foo"))
+     (org-mode)
+     (message "%s" (pp-to-string (org-element-parse-buffer)))
+)
+EOF
+)
+
+exec docker run --init --rm -i --mount type=tmpfs,destination=/tmp -v "/:/input:ro" -w /input --entrypoint "" organic-test emacs -q --no-site-file --no-splash --batch --eval "$INIT_SCRIPT"
diff --git a/notes/affiliated_keyword_investigation/test_document.org b/notes/affiliated_keyword_investigation/test_document.org
new file mode 100644
index 0000000..58f36d2
--- /dev/null
+++ b/notes/affiliated_keyword_investigation/test_document.org
@@ -0,0 +1,25 @@
+# Single instance
+#+foo: *a*
+#+begin_example
+
+#+end_example
+
+# Two instances
+#+foo: *b*
+#+foo: *c*
+#+begin_example
+
+#+end_example
+
+# Single with optval
+#+foo[*bar*]: *d*
+#+begin_example
+
+#+end_example
+
+# Two with optval
+#+foo[*bar*]: *e*
+#+foo[*bar*]: *f*
+#+begin_example
+
+#+end_example