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A Property
Indicates (by URL or string) a particular version of a schema used in some CreativeWork. This property was created primarily to indicate the use of a specific release, e.g. 10.0 as a simple string, or more explicitly via URL, There may be situations in which other schemas might usefully be referenced this way, e.g. but this has not been carefully explored in the community.
Values expected to be one of these types
Used on these types