About: http://webisa.webdatacommons.org/289085268

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	Also, it will be understood that, when the unit is only intended for use in skimming liquid impurities, such as oil, from the surface of water, conveyor unit 22 and barges 28 may be omitted.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com