About: http://webisa.webdatacommons.org/171536817

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	Physics tells us that to the best of current knowledge, such things exist physically as well.
http://www.w3.org/ns/prov#wasQuotedFrom	c2.com