Assertion: bin laden's attack | /r/HasProperty | based on information
Facets:
value: from other official government sources
type: OTHER
value: from u.s. authorities
type: OTHER
Source sentences:
text: A look back at some key moments in the life of al Qaeda leader Osama bin Laden, including attacks that he was purportedly behind and messages attributed to him, based on information from U.S. authorities and other official government sources.