90 In order to understand how the two agencies interacted eight years later, we will review their missions, command and control structures, and working relationship on the morning of 9/11.
( ( ( 90 ( In order ) ) ( to ( understand ( how ( ( the ( two agencies ) ) ( interacted ( ( eight years ) later ) ) ) ) ) ) ) ( , ( we ( ( will ( review ( ( ( ( ( ( their missions ) , ) ( command ( and ( control structures ) ) ) ) , ) and ) ( ( working relationship ) ( on ( ( the morning ) ( of 9/11 ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (WHNP (NP (CD 90)) (PP (IN In) (NP (NN order)))) (S (VP (TO to) (VP (VB understand) (SBAR (WHADVP (WRB how)) (S (NP (DT the) (CD two) (NNS agencies)) (VP (VBD interacted) (ADVP (NP (CD eight) (NNS years)) (RB later))))))))) (, ,) (NP (PRP we)) (VP (MD will) (VP (VB review) (NP (NP (PRP$ their) (NNS missions)) (, ,) (NP (NN command) (CC and) (NN control) (NNS structures)) (, ,) (CC and) (NP (NP (VBG working) (NN relationship)) (PP (IN on) (NP (NP (DT the) (NN morning)) (PP (IN of) (NP (CD 9/11))))))))) (. .)))
Reviewing their missions, command and control structures will not aid us in understanding their interactions.
( ( Reviewing ( their missions ) ) ( , ( ( command ( and ( control structures ) ) ) ( ( ( will not ) ( ( aid us ) ( in ( understanding ( their interactions ) ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (VBG Reviewing) (NP (PRP$ their) (NNS missions)))) (, ,) (NP (NN command) (CC and) (NN control) (NNS structures)) (VP (MD will) (RB not) (VP (VB aid) (NP (PRP us)) (PP (IN in) (S (VP (VBG understanding) (NP (PRP$ their) (NNS interactions))))))) (. .)))