Hi

I'd like to suggest extending the rangeIncludes of the 'genre' and 'keywords' property of schema.org/CreativeWork (currently just "Text") to also include URL.

This will allow advanced users to implement more Linked Open Data (LOD) in schema.org, by replacing a free-typed text string in 'genre' or 'keywords' with a URI from a LOD vocabulary.

For example, the "genre" property for a Late Renaissance painting (marked up using VisualArtwork, a sub-Type of CreativeWork) could be set to the Getty AAT LOD URI "http://vocab.getty.edu/aat/300021143" instead of the text value "Late Renaissance".

Similar LOD URIs (e.g. from Wikidata etc.) could be used in the "keywords" property.

There may be other properties that can be included in this enhancement to incorporate LOD, but these two seemed the most obvious.

Thanks,

Paul