About 20 minutes later, at 7:35, another passenger for Flight 77, Hani Hanjour, placed two carry-on bags on the X-ray belt in the Main Terminal's west checkpoint, and proceeded, without alarm, through the metal detector.
( ( ( ( About 20 ) minutes ) later ) ( , ( ( at 7:35 ) ( , ( ( ( ( ( ( another passenger ) ( for ( Flight 77 ) ) ) , ) ( Hani Hanjour ) ) , ) ( ( ( ( ( ( ( placed ( two ( carry-on bags ) ) ) ( on ( the ( X-ray belt ) ) ) ) ( in ( ( the ( Main ( Terminal 's ) ) ) ( west checkpoint ) ) ) ) , ) and ) ( ( ( ( proceeded , ) ( without alarm ) ) , ) ( through ( the ( metal detector ) ) ) ) ) . ) ) ) ) ) )
(ROOT (S (ADVP (NP (QP (RB About) (CD 20)) (NNS minutes)) (RB later)) (, ,) (PP (IN at) (NP (CD 7:35))) (, ,) (NP (NP (NP (DT another) (NN passenger)) (PP (IN for) (NP (NNP Flight) (CD 77)))) (, ,) (NP (NNP Hani) (NNP Hanjour)) (, ,)) (VP (VBD placed) (NP (CD two) (JJ carry-on) (NNS bags)) (PP (IN on) (NP (DT the) (NN X-ray) (NN belt))) (PP (IN in) (NP (NP (DT the) (NNP Main) (NNP Terminal) (POS 's)) (JJ west) (NN checkpoint)))) (, ,) (CC and) (VP (VBD proceeded) (, ,) (PP (IN without) (NP (NN alarm))) (, ,) (PP (IN through) (NP (DT the) (NN metal) (NN detector)))) (. .)))
About twenty minutes later, another passenger was able to move through the checkpoint without alarm.
( ( ( About ( twenty minutes ) ) later ) ( , ( ( another passenger ) ( ( was ( able ( to ( ( move ( through ( the checkpoint ) ) ) ( without alarm ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (NP (RB About) (CD twenty) (NNS minutes)) (RB later)) (, ,) (NP (DT another) (NN passenger)) (VP (VBD was) (ADJP (JJ able) (S (VP (TO to) (VP (VB move) (PP (IN through) (NP (DT the) (NN checkpoint))) (PP (IN without) (NP (NN alarm)))))))) (. .)))