About: http://webisa.webdatacommons.org/50799284

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	The physical, electrical, and aesthetic parameters attributed to the various parts of the environment such as walls, floors, foliage, buildings, hills, and other obstacles that affect radio waves are also stored in the database.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com