About: http://webisa.webdatacommons.org/50733174

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	The above test will fail if findUser() neglects to call connect(), passes the wrong value for $id (5 above), or returns anything other than null.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com