About: http://webisa.webdatacommons.org/270072302

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	In this case, the base surface BS1 is a surface that is parallel to a horizontal surface, by way of example.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com