About: http://webisa.webdatacommons.org/118297116

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	The interface is a little quirky, but at the same time, I think they make good design decisions that keep it easy to use.But it is $50/$80 for the consumer and pro versions, respectively.
http://www.w3.org/ns/prov#wasQuotedFrom	techreport.com