About: http://webisa.webdatacommons.org/185170420

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 you feel the client is simply trying to worm out of paying then point to the quotes and any other documentation showing that you delivered what was requested.
http://www.w3.org/ns/prov#wasQuotedFrom	tutsplus.com