About: http://webisa.webdatacommons.org/382933517

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	-- Once again, sum asks whether filter is done or not, so filter demands another value or []
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com