About: http://webisa.webdatacommons.org/297778271

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	I have not tried the program using all document types, but Microsoft Office file types are supported, as are PDF & JPG.
http://www.w3.org/ns/prov#wasQuotedFrom	cnet.com