About: http://webisa.webdatacommons.org/139797478

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	type: contains the different kinds of validations, and it is also serves as the extension point for adding more.
http://www.w3.org/ns/prov#wasQuotedFrom	tutsplus.com