About: http://webisa.webdatacommons.org/101056542

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	These conditions apply for example, when two optical elements as, e.g. mirrors or lenses are to be compared, and the optical element in one of the branches can serve as reference (or standard).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com