About: http://webisa.webdatacommons.org/246018954

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 footprint define by the barrier may have any desired shape such as circular, square, rectangular, polygonal, or irregular shape.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca