About: http://webisa.webdatacommons.org/29636339

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 the absence of this feature, Class::Contract accessors of all types return a reference to their attribute, which then requires an explicit dereference:
http://www.w3.org/ns/prov#wasQuotedFrom	cpan.org