About: http://webisa.webdatacommons.org/78714859

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	Filtering is a method of improving a search, so I would contend that tags are for searching purposes.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com