Clarify conflicted state set?

content/rooms/fragments/v2-state-res.md

@@ -31,13 +31,15 @@ the `membership` is `leave` or `ban` and the `sender` does not match the
 might remove someone's ability to do something in the room.
 
 **Unconflicted state map and conflicted state set.**
-The key-value pairs across all state maps *S<sub>i</sub>* can be divided into
-two collections. If a given key *K* is present in every *S<sub>i</sub>* with the
-same value *V* in each state map, then the pair (*K*, *V*) belongs to the
-*unconflicted state map*. Otherwise (*K*, *V*) belongs to the
-*conflicted state set*.
-
-Note that the unconflicted state map only has one event per `(event_type, state_key)`,
+The keys of the state maps *S<sub>i</sub>* are 2-tuples of strings of the form
+*K* = `(event_type, state_key)`. The values *V* are state events.
+The key-value pairs (*K*, *V*) across all state maps *S<sub>i</sub>* can be 
+divided into two collections.
+If a given key *K* is present in every *S<sub>i</sub>* with the same value *V* 
+in each state map, then the pair (*K*, *V*) belongs to the *unconflicted state map*.
+Otherwise (*K*, *V*) belongs to the *conflicted state set*.
+
+Note that the unconflicted state map only has one event for each key *K*,
 whereas the conflicted state set may associate multiple events to the same key.
 
 **Auth chain.**