About: http://webisa.webdatacommons.org/262116595

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	Which then again raises the question of how did you know there was a change if you didn't or could not know the initial state.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org