About: http://webisa.webdatacommons.org/321457245

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	Btw, there is a bug in your provider: you MUST implement isReadable method, so it will return true for the correct media type and class.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com