About: http://webisa.webdatacommons.org/228387172

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 a preferred embodiment, these coordinates are orthogonally-referenced (i.e. x- and y-coordinates), although other conventions may be used with equivalent enabling effect, such as vector-referencing (i.e. angle and distance).
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca