About: http://webisa.webdatacommons.org/450298775

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	is exactly what I am looking for, except the fact, that it does not work cross-assembly.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com