They said the hijackers wielded knives and claimed to have a bomb.
( They ( ( said ( ( the hijackers ) ( ( ( wielded knives ) and ) ( claimed ( to ( have ( a bomb ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBD said) (SBAR (S (NP (DT the) (NNS hijackers)) (VP (VP (VBD wielded) (NP (NNS knives))) (CC and) (VP (VBD claimed) (S (VP (TO to) (VP (VB have) (NP (DT a) (NN bomb)))))))))) (. .)))
The highjackers held no weapons at all.
( ( The highjackers ) ( ( ( held ( no weapons ) ) ( at all ) ) . ) )
(ROOT (S (NP (DT The) (NNS highjackers)) (VP (VBD held) (NP (DT no) (NNS weapons)) (ADVP (IN at) (DT all))) (. .)))