About: http://webisa.webdatacommons.org/337526851

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	Reading more and more on the links you gave and other links I have found only one thought comes to mind:
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com