About: http://webisa.webdatacommons.org/67674331

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	@harold, yes, might not be as space efficient as possible, but the OP said It does not have to be particularly efficient, just something basic - and he is it!
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com