About: http://webisa.webdatacommons.org/322263796

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Everything else is a duplicate of #12437, which I imagine is where you remember reading that plugins might use it. (Or #11687, where this started.)
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.org