+<?php
+
+namespace Friendica\Protocol\Activity;
+
+/**
+ * Activity namespaces constants
+ */
+final class ANamespace
+{
+ const ZOT = 'http://purl.org/zot';
+ const DFRN = 'http://purl.org/macgirvin/dfrn/1.0';
+ const THREAD = 'http://purl.org/syndication/thread/1.0';
+ const TOMB = 'http://purl.org/atompub/tombstones/1.0';
+ const ACTIVITY2 = 'https://www.w3.org/ns/activitystreams#';
+ const ACTIVITY = 'http://activitystrea.ms/spec/1.0/';
+ const ACTIVITY_SCHEMA = 'http://activitystrea.ms/schema/1.0/';
+ const MEDIA = 'http://purl.org/syndication/atommedia';
+ const SALMON_ME = 'http://salmon-protocol.org/ns/magic-env';
+ const OSTATUSSUB = 'http://ostatus.org/schema/1.0/subscribe';
+ const GEORSS = 'http://www.georss.org/georss';
+ const POCO = 'http://portablecontacts.net/spec/1.0';
+ const FEED = 'http://schemas.google.com/g/2010#updates-from';
+ const OSTATUS = 'http://ostatus.org/schema/1.0';
+ const STATUSNET = 'http://status.net/schema/api/1/';
+ const ATOM1 = 'http://www.w3.org/2005/Atom';
+ const MASTODON = 'http://mastodon.social/schema/1.0';
+}