He was defeated by the alerted, unarmed passengers of United 93.
( He ( ( was ( defeated ( by ( ( the ( alerted ( , ( unarmed passengers ) ) ) ) ( of ( United 93 ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD was) (VP (VBN defeated) (PP (IN by) (NP (NP (DT the) (JJ alerted) (, ,) (JJ unarmed) (NNS passengers)) (PP (IN of) (NP (NNP United) (CD 93))))))) (. .)))
The passengers knocked the man unconscious.
( ( The passengers ) ( ( knocked ( ( the man ) unconscious ) ) . ) )
(ROOT (S (NP (DT The) (NNS passengers)) (VP (VBD knocked) (S (NP (DT the) (NN man)) (ADJP (JJ unconscious)))) (. .)))