1 files changed, 8 insertions, 8 deletions

diff --git a/52.md b/52.md
index c601412..6950744 100644
--- a/52.md
+++ b/52.md
@@ -6,7 +6,7 @@ Calendar Events
 
 `draft` `optional` `author:tyiu`
 
-This specification defines calendar events representing an occurrence at a specific moment or between moments. These calendar events are replaceable and referenceable per [NIP-33](33.md) and deletable per [NIP-09](09.md).
+This specification defines calendar events representing an occurrence at a specific moment or between moments. These calendar events are _parameterized replaceable_ and deletable per [NIP-09](09.md).
 
 Unlike the term `calendar event` specific to this NIP, the term `event` is used broadly in all the NIPs to describe any Nostr event. The distinction is being made here to discern between the two terms.
 
@@ -30,7 +30,7 @@ The list of tags are as follows:
 * `start` (required) inclusive start date in ISO 8601 format (YYYY-MM-DD). Must be less than `end`, if it exists.
 * `end` (optional) exclusive end date in ISO 8601 format (YYYY-MM-DD). If omitted, the calendar event ends on the same date as `start`.
 * `location` (optional) location of the calendar event. e.g. address, GPS coordinates, meeting room name, link to video call
-* `g` (optional) [geohash](https://en.wikipedia.org/wiki/Geohash) to associate calendar event with a searchable physical location as suggested as an example by [NIP-12](12.md)
+* `g` (optional) [geohash](https://en.wikipedia.org/wiki/Geohash) to associate calendar event with a searchable physical location
 * `p` (optional, repeated) 32-bytes hex pubkey of a participant, optional recommended relay URL, and participant's role in the meeting
 * `t` (optional, repeated) hashtag to categorize calendar event
 * `r` (optional, repeated) references / links to web pages, documents, video calls, recorded videos, etc.
@@ -40,7 +40,7 @@ The list of tags are as follows:
   "id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>,
   "pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
   "created_at": <Unix timestamp in seconds>,
-  "kind": "31922",
+  "kind": 31922,
   "content": "<description of calendar event>",
   "tags": [
     ["d", "<UUID>"],
@@ -88,7 +88,7 @@ The list of tags are as follows:
 * `start_tzid` (optional) time zone of the start timestamp, as defined by the IANA Time Zone Database. e.g., `America/Costa_Rica`
 * `end_tzid` (optional) time zone of the end timestamp, as defined by the IANA Time Zone Database. e.g., `America/Costa_Rica`. If omitted and `start_tzid` is provided, the time zone of the end timestamp is the same as the start timestamp.
 * `location` (optional) location of the calendar event. e.g. address, GPS coordinates, meeting room name, link to video call
-* `g` (optional) [geohash](https://en.wikipedia.org/wiki/Geohash) to associate calendar event with a searchable physical location as suggested as an example by [NIP-12](12.md)
+* `g` (optional) [geohash](https://en.wikipedia.org/wiki/Geohash) to associate calendar event with a searchable physical location
 * `p` (optional, repeated) 32-bytes hex pubkey of a participant, optional recommended relay URL, and participant's role in the meeting
 * `t` (optional, repeated) hashtag to categorize calendar event
 * `r` (optional, repeated) references / links to web pages, documents, video calls, recorded videos, etc.
@@ -98,7 +98,7 @@ The list of tags are as follows:
   "id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>,
   "pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
   "created_at": <Unix timestamp in seconds>,
-  "kind": "31923",
+  "kind": 31923,
   "content": "<description of calendar event>",
   "tags": [
     ["d", "<UUID>"],
@@ -139,7 +139,7 @@ A calendar is a collection of calendar events, represented as a custom replaceab
 
 The format uses a custom replaceable list of kind `31924` with a list of tags as described below:
 * `d` (required) calendar name
-* `a` (repeated) reference tag to kind `31922` or `31923` calendar event being responded to per [NIP-33](33.md)
+* `a` (repeated) reference tag to kind `31922` or `31923` calendar event being responded to
 
 ```json
 {
@@ -171,7 +171,7 @@ The format uses a parameterized replaceable event kind `31925`.
 The `.content` of these events is optional and should be a free-form note that adds more context to this calendar event response.
 
 The list of tags are as follows:
-* `a` (required) reference tag to kind `31922` or `31923` calendar event being responded to per [NIP-33](33.md)
+* `a` (required) reference tag to kind `31922` or `31923` calendar event being responded to.
 * `d` (required) universally unique identifier. Generated by the client creating the calendar event RSVP.
 * `L` (required) label namespace of `status` per [NIP-32](32.md)
 * `l` (required) label of `accepted`, `declined`, or `tentative` under the label namespace of `status` per [NIP-32](32.md). Determines attendance status to the referenced calendar event.
@@ -183,7 +183,7 @@ The list of tags are as follows:
   "id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>,
   "pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
   "created_at": <Unix timestamp in seconds>,
-  "kind": "31925",
+  "kind": 31925,
   "content": "<note>",
   "tags": [
     ["a", "<31922 or 31923>:<calendar event author pubkey>:<d-identifier of calendar event>", "<optional relay url>"],