core + meta (Meta Extension): terms used within schema.org for schema definitions.

replacer

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

Thing > Property > object > replacer

A sub property of object. The object that replaces.
Values expected to be one of these types
Expected values defined in extensions
Thing - defined in the core extension
Used on these types
ReplaceAction
Super-properties
object

Schema Version 3.4