diff --git a/10.md b/10.md
index c0ef9d19..1c470354 100644
--- a/10.md
+++ b/10.md
@@ -37,7 +37,7 @@ They are citings from this event.  `root-id` and `reply-id` are as above.
 
 >This scheme is deprecated because it creates ambiguities that are difficult, or impossible to resolve when an event references another but is not a reply.
 
-## Marked "e" tags (PREFERRED)
+## Marked "e" tags (RECOMMENDED)
 `["e", <event-id>, <relay-url>, <marker>]`  
 	
 Where:
@@ -54,9 +54,33 @@ A direct reply to the root of a thread should have a single marked "e" tag of ty
 
 
 ## The "p" tag
-Used in a text event contains a list of pubkeys used to record who is involved in a reply thread.
 
-When replying to a text event E the reply event's "p" tags should contain all of E's "p" tags as well as the `"pubkey"` of the event being replied to.  
+### Unmarked "p" tags (DEPRECATED)
+Used in a text event to record who is involved in a reply thread and mentions.
+Any `p` tags from the event that is replied to, the public key of the event replied to, and the public keys mentioned are added to tags.
 
 Example:  Given a text event authored by `a1` with "p" tags [`p1`, `p2`, `p3`] then the "p" tags of the reply should be [`a1`, `p1`, `p2`, `p3`] 
 in no particular order.
+
+### Marked "p" tags (RECOMMENDED)
+
+`["p", <pubkey>, <relay>, <type>]`
+
+
+- `<pubkey>` is the public key being referenced.
+- `<relay-url>` is the URL of a recommended relay associated with this public key. This is optional and may be an empty string.
+- `<type>` is required. It can be:
+    - `reply`: This public key is involved in the reply thread.
+    - `mention`: This public key is mentioned in this note or was in the reply thread.
+    - `silent`: This public key is being referenced in this note but should not be notified (such as public key lists).
+    - A blank string.
+
+A client should follow the following steps while creating a note.
+A `p` tag should not be added if one with the same type and pubkey exists in the tag list.
+
+1. Copy any `p` tags from the event being replied to, if any, except ones with the type `silent`.
+    - If there are p tags without a type string (blank strings are fine), they should be copied over with a `type` of `reply` and a relay may be optionally set if the client has that information.
+2. Add a `p` tag with the pubkey of the event being replied to, if any, with the type `reply`.
+3. Add any `p` tags that are mentioned with the types `mention` or `silent` depending on if the user wants to silently mention someone.
+
+Clients SHOULD NOT show notifications from events with `p` tags mentioning this user with the type `silent`.
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