About: http://webisa.webdatacommons.org/313074315

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	While there are other options, you should stick to two files types for the pictures you include:
http://www.w3.org/ns/prov#wasQuotedFrom	groupasystems.com