About: http://webisa.webdatacommons.org/6761814

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	In your case, you just want to save the user/name in your request and the easiest way is to use sessions.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com