Thirty-seven passengers, including the hijackers, boarded the plane.
( ( ( ( ( Thirty-seven passengers ) , ) ( including ( the hijackers ) ) ) , ) ( ( boarded ( the plane ) ) . ) )
(ROOT (S (NP (NP (JJ Thirty-seven) (NNS passengers)) (, ,) (PP (VBG including) (NP (DT the) (NNS hijackers))) (, ,)) (VP (VBD boarded) (NP (DT the) (NN plane))) (. .)))
There were thirty-seven passengers on the plane including the hijackers.
( There ( ( were ( ( thirty-seven passengers ) ( on ( ( the plane ) ( including ( the hijackers ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBD were) (NP (NP (JJ thirty-seven) (NNS passengers)) (PP (IN on) (NP (NP (DT the) (NN plane)) (PP (VBG including) (NP (DT the) (NNS hijackers))))))) (. .)))