diff --git a/examples/input.yaml b/examples/input.yaml
index 2773982..affe30f 100644
--- a/examples/input.yaml
+++ b/examples/input.yaml
@@ -1,4 +1,6 @@
 ---
 ${i}:
-  - ${join(", ", h)}
-  - ${join(", ", list("Foo", "Bar"))}
\ No newline at end of file
+  - ${join(", ", list("Foo", "Bar"))}
+  - ${i}
+  - ${upper("foobar")}
+  - ${length(h)}
\ No newline at end of file