About: http://webisa.webdatacommons.org/287212889

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	This is done this way, because there might be many ways to do the validation, and you might collect additional information on the user to store in their sesion, such as roles, or other credentials.
http://www.w3.org/ns/prov#wasQuotedFrom	vitarara.org