About: http://webisa.webdatacommons.org/183603989

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	For instance, a substantially visually transparent material such as glass or plastic may be placed at the center of mass, and would allow an observer on the ground to see directly through the center of mass.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com