About: http://webisa.webdatacommons.org/405606536

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	The FBI had previously determined that several of the hijackers, including Hanjour and ringleader Muhammed Atta, had traveled as passengers aboard the flights they later hijacked in order to observe crew practices.
http://www.w3.org/ns/prov#wasQuotedFrom	propagandamatrix.com