About: http://webisa.webdatacommons.org/431887956

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	Includes special trade contractors working on ships and boats such as painters, carpenters, joiners, electricians, etc. ??? Oilfields.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com