About: http://webisa.webdatacommons.org/162080161

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	bridge, dam, canal, flue, aqueduct, levee, embankment, reservoir, or other structure erected to
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com