About: http://webisa.webdatacommons.org/421048968

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 W3C there is a button property which works same in all browsers except IE:
http://www.w3.org/ns/prov#wasQuotedFrom	javascript.info