diff --git a/29.md b/29.md
index 6c363773..9d0dbb5f 100644
--- a/29.md
+++ b/29.md
@@ -4,7 +4,7 @@ NIP-29
 Relay-based Groups
 ------------------
 
-`draft` `optional` `author:fiatjaf`
+`draft` `optional`
 
 This NIP defines a standard for groups that are only writable by a closed set of users. They can be public for reading by external users or not.
 
@@ -38,9 +38,9 @@ Relays must strip the signature of messages in groups that are `private` so they
 
 ## Event definitions
 
-- *text note* (`kind:11`)
+- *text root note* (`kind:11`)
 
-This is the basic unit of a "microblog" text note sent to a group.
+This is the basic unit of a "microblog" root text note sent to a group.
 
 ```js
   "kind": 11,
@@ -52,6 +52,21 @@ This is the basic unit of a "microblog" text note sent to a group.
   ...
 ```
 
+- *text reply note* (`kind:12`)
+
+This is the basic unit of a "microblog" reply note sent to a group.
+
+```js
+  "kind": 12,
+  "content": "pizza is disgusting and you should be ashamed",
+  "tags": [
+    ["h", "<group-id>"],
+    [ "e", "<reply-event-id>"],
+    ["previous", "<event-id>", "<event-id>", ...]
+  ]
+  ...
+```
+
 - *chat message* (`kind:9`)
 
 Similar to `kind:11`, this is the basic unit of a chat message sent to a group.