diff --git a/ns/activitystreams.jsonld b/ns/activitystreams.jsonld
index 037026c..f5687e3 100644
--- a/ns/activitystreams.jsonld
+++ b/ns/activitystreams.jsonld
@@ -61,10 +61,6 @@
     "Read": "as:Read",
     "Move": "as:Move",
     "Travel": "as:Travel",
-    "IsFollowing": "as:IsFollowing",
-    "IsFollowedBy": "as:IsFollowedBy",
-    "IsContact": "as:IsContact",
-    "IsMember": "as:IsMember",
     "subject": {
       "@id": "as:subject",
       "@type": "@id"