NORAD, what's the situation?
( NORAD ( , ( what ( ( 's ( the situation ) ) ? ) ) ) )
(ROOT (SBARQ (NP (NNP NORAD)) (, ,) (WHNP (WP what)) (SQ (VBZ 's) (NP (DT the) (NN situation))) (. ?)))
Update on the situation, we need to act fast. 
( ( Update ( on ( the situation ) ) ) ( , ( we ( ( need ( to ( act fast ) ) ) . ) ) ) )
(ROOT (S (S (VP (VBG Update) (PP (IN on) (NP (DT the) (NN situation))))) (, ,) (NP (PRP we)) (VP (VBP need) (S (VP (TO to) (VP (VB act) (ADVP (RB fast)))))) (. .)))