About: http://webisa.webdatacommons.org/64909798

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	If such types were usable as generic parameters (e.g. List<ExclusiveRef<X>>), I think 99% of cloning situations could be taken care of automatically.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com