diff --git a/35.md b/35.md
index beff6754..476ae36d 100644
--- a/35.md
+++ b/35.md
@@ -18,8 +18,12 @@ An additional `k` tag identifies the kind of the draft event.
   "tags": [
     ["d", "<identifier>"],
     ["k", "<kind of the draft event>"],
+    ["e", "<anchor event event id>", "<relay-url>"],
+    ["a", "<anchor event address>", "<relay-url>"],
   ],
   "content": nip44Encrypt(JSON.stringify(draft_event)),
   // other fields
 }
-```
\ No newline at end of file
+```
+
+Tags `e` and `a` identify one or more anchor events, such as parent events on replies.