About: http://webisa.webdatacommons.org/157185158

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	All drawing primitives such as lines and polygons are then drawn with respect to this coordinate system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com