an ActivityPub behavior
id
uuid
a4876ff4-7751-4bc6-91e0-9275382d4a85
name
content
The following collection MUST be either an OrderedCollection or a Collection
origin

The origin of a normative behavior is where it originated, e.g. normative language in a protocol specification.

origin.source
https://www.w3.org/TR/activitypub/
origin.section
origin.selector.exact
The following collection MUST be either an OrderedCollection or a Collection
in context
Every actor SHOULD have a following collection. This is a list of everybody that the actor has followed, added as a side effect. The following collection MUST be either an OrderedCollection or a Collection and MAY be filtered on privileges of an authenticated user or as appropriate when no authentication is given.
— https://www.w3.org/TR/activitypub/
JSON 
{
  "type": "Behavior",
  "uuid": "a4876ff4-7751-4bc6-91e0-9275382d4a85",
  "content": "The following collection MUST be either an OrderedCollection or a Collection",
  "origin": {
    "source": "https://www.w3.org/TR/activitypub/",
    "section": {
      "id": "https://www.w3.org/TR/activitypub/#following",
      "branch": [
        5,
        4
      ]
    },
    "selector": {
      "type": "TextQuoteSelector",
      "prefix": "Every actor SHOULD have a following collection. This is a list of everybody that the actor has followed, added as a side effect.\n",
      "exact": "The following collection MUST be either an OrderedCollection or a Collection\n",
      "suffix": "and MAY be filtered on privileges of an authenticated user or as appropriate when no authentication is given.\n"
    }
  }
}