About: http://webisa.webdatacommons.org/196468356

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	In fact, the code for sub unique is a one liner; you could just hork and use it verbatim:
http://www.w3.org/ns/prov#wasQuotedFrom	perlmonks.org