About: http://webisa.webdatacommons.org/217144930

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	So the answer they give is an estimation of what is their piece though not necessarily what is required for the project in full.
http://www.w3.org/ns/prov#wasQuotedFrom	ittoolbox.com