About: http://webisa.webdatacommons.org/137079540

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 this conversation there is a comment that agrees with Kent's position, not to use Converters at all, interesting:
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com