About: http://webisa.webdatacommons.org/214341425

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	I have only used it for tabular data, but I do not think there would be any problem for other types of documents.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com