About: http://webisa.webdatacommons.org/9092437

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	My understanding of these regulations (the second link is especially helpful) would prohibit what you are trying to do unless your clientele explicitly opt-int, but I am by no means particularly competent in these regulations.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com