About: http://webisa.webdatacommons.org/57197507

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	Preferably, this surface is a plane with a non-zero inclination or a curved surface.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca