About: http://webisa.webdatacommons.org/446877264

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	To get started, if you want to crack the ice there is a very simple but working example here, with links to more php/excel ressources.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com