American also began getting identifications of the hijackers, as Ong and then Sweeney passed on some of the seat numbers of those who had gained unauthorized access to the cockpit.
( ( ( ( ( American ( also ( ( ( began ( getting ( identifications ( of ( the hijackers ) ) ) ) ) , ) ( as Ong ) ) ) ) and ) then ) ( Sweeney ( passed ( on ( some ( of ( ( the ( seat numbers ) ) ( of ( those ( who ( had ( ( gained ( unauthorized access ) ) ( to ( the cockpit ) ) ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP American)) (ADVP (RB also)) (VP (VBD began) (S (VP (VBG getting) (NP (NP (NNS identifications)) (PP (IN of) (NP (DT the) (NNS hijackers)))))) (, ,) (PP (IN as) (NP (NNP Ong))))) (CC and) (RB then) (S (NP (NNP Sweeney)) (VP (VBD passed) (PP (IN on) (NP (NP (DT some)) (PP (IN of) (NP (NP (DT the) (NN seat) (NNS numbers)) (PP (IN of) (NP (NP (DT those)) (SBAR (WHNP (WP who)) (S (VP (VBD had) (VP (VBN gained) (NP (JJ unauthorized) (NN access)) (PP (TO to) (NP (DT the) (NN cockpit))))))))))))))) (. .)))
The hijackers got unauthorized access to the cockpit.
( ( The hijackers ) ( ( ( got ( unauthorized access ) ) ( to ( the cockpit ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS hijackers)) (VP (VBD got) (NP (JJ unauthorized) (NN access)) (PP (TO to) (NP (DT the) (NN cockpit)))) (. .)))