core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

collection

Canonical URL: http://schema.org/collection

Thing > Property > object > collection

A sub property of object. The collection target of the action.

Usage: Between 10 and 100 domains
Values expected to be one of these types
Thing
Used on these types
UpdateAction
Super-properties
object
supersededBy
targetCollection

Schema Version 3.3