About: http://webisa.webdatacommons.org/225810382

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	This would help sending unique id (just in case :), and do some checks if i.e. ID used come with is valid.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com