diff --git a/50.md b/50.md
index 9eea1f85..b919cbc8 100644
--- a/50.md
+++ b/50.md
@@ -8,11 +8,11 @@ Search Capability
 
 ## Abstract
 
-Many Nostr use cases require some form of general search feature, in addition to structured queries by tags or ids. 
-Specifics of the search algorithms will differ between event kinds, this NIP only describes a general 
+Many Nostr use cases require some form of general search feature, in addition to structured queries by tags or ids.
+Specifics of the search algorithms will differ between event kinds, this NIP only describes a general
 extensible framework for performing such queries.
 
-## `search` filter field 
+## `search` filter field
 
 A new `search` field is introduced for `REQ` messages from clients:
 ```jsonc
@@ -21,23 +21,23 @@ A new `search` field is introduced for `REQ` messages from clients:
   "search": <string>
 }
 ```
-`search` field is a string describing a query in a human-readable form, i.e. "best nostr apps". 
-Relays SHOULD interpret the query to the best of their ability and return events that match it. 
+`search` field is a string describing a query in a human-readable form, i.e. "best nostr apps".
+Relays SHOULD interpret the query to the best of their ability and return events that match it.
 Relays SHOULD perform matching against `content` event field, and MAY perform
-matching against other fields if that makes sense in the context of a specific kind. 
+matching against other fields if that makes sense in the context of a specific kind.
 
 Results SHOULD be returned in descending order by quality of search result (as defined by the implementation),
 not by the usual `.created_at`. The `limit` filter SHOULD be applied after sorting by matching score.
-A query string may contain `key:value` pairs (two words separated by colon), these are extensions, relays SHOULD ignore 
+A query string may contain `key:value` pairs (two words separated by colon), these are extensions, relays SHOULD ignore
 extensions they don't support.
 
-Clients may specify several search filters, i.e. `["REQ", "", { "search": "orange" }, { "kinds": [1, 2], "search": "purple" }]`. Clients may 
+Clients may specify several search filters, i.e. `["REQ", "_", {"kinds": [1], "search": "purple"}]`. Clients may
 include `kinds`, `ids` and other filter field to restrict the search results to particular event kinds.
 
-Clients SHOULD use the supported_nips field to learn if a relay supports `search` filter. Clients MAY send `search` 
+Clients SHOULD use the supported_nips field to learn if a relay supports `search` filter. Clients MAY send `search`
 filter queries to any relay, if they are prepared to filter out extraneous responses from relays that do not support this NIP.
 
-Clients SHOULD query several relays supporting this NIP to compensate for potentially different 
+Clients SHOULD query several relays supporting this NIP to compensate for potentially different
 implementation details between relays.
 
 Clients MAY verify that events returned by a relay match the specified query in a way that suits the