Minutes later, United 175 turned southwest without clearance from air traffic control.
( ( Minutes later ) ( , ( ( United 175 ) ( ( ( ( turned southwest ) ( without clearance ) ) ( from ( air ( traffic control ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB Minutes) (RB later)) (, ,) (NP (NNP United) (CD 175)) (VP (VBD turned) (NP (NN southwest)) (PP (IN without) (NP (NN clearance))) (PP (IN from) (NP (NN air) (NN traffic) (NN control)))) (. .)))
United 175 turned and it was against protocol.  
( ( ( ( ( United 175 ) turned ) and ) ( it ( was ( against protocol ) ) ) ) . )
(ROOT (S (S (NP (NNP United) (CD 175)) (VP (VBD turned))) (CC and) (S (NP (PRP it)) (VP (VBD was) (PP (IN against) (NP (NN protocol))))) (. .)))