About: http://webisa.webdatacommons.org/110544817

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	They came from U.S. and British government aviation agencies, as well as private companies such as Rolls-Royce ??? which made the jet???s engine ??? and Boeing, the plane???s manufacturer.
http://www.w3.org/ns/prov#wasQuotedFrom	washingtonpost.com