At the same time, Boston Center realized that a message transmitted just before 8:25 by the hijacker pilot of American 11 included the phrase, We have some planes.
( ( At ( the ( same time ) ) ) ( , ( ( Boston Center ) ( ( realized ( that ( ( a message ) ( transmitted ( ( just ( before ( ( 8:25 ( by ( ( the ( hijacker pilot ) ) ( of ( American 11 ) ) ) ) ) ( included ( the phrase ) ) ) ) ) ( , ( We ( have ( some planes ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (DT the) (JJ same) (NN time))) (, ,) (NP (NNP Boston) (NNP Center)) (VP (VBD realized) (SBAR (IN that) (S (NP (DT a) (NN message)) (VP (VBD transmitted) (SBAR (S (SBAR (RB just) (IN before) (S (NP (NP (CD 8:25)) (PP (IN by) (NP (NP (DT the) (NN hijacker) (NN pilot)) (PP (IN of) (NP (NNP American) (CD 11)))))) (VP (VBD included) (NP (DT the) (NN phrase))))) (, ,) (NP (PRP We)) (VP (VBP have) (NP (DT some) (NNS planes))))))))) (. .)))
The hijacker on one of the flights said that they had some planes.
( ( ( The hijacker ) ( on ( one ( of ( the flights ) ) ) ) ) ( ( said ( that ( they ( had ( some planes ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN hijacker)) (PP (IN on) (NP (NP (CD one)) (PP (IN of) (NP (DT the) (NNS flights)))))) (VP (VBD said) (SBAR (IN that) (S (NP (PRP they)) (VP (VBD had) (NP (DT some) (NNS planes)))))) (. .)))