About: http://webisa.webdatacommons.org/197864635

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	Obstacles such as lakes 506, rivers 504, cliffs, or other topographical features may also be considered in this ordering process.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com