American 77 traveled undetected for 36 minutes on a course heading due east for Washington, D.C.
( ( American 77 ) ( ( traveled ( undetected ( for ( 36 minutes ) ) ) ) ( on ( ( a course ) ( ( heading ( due east ) ) ( for ( Washington ( , D.C. ) ) ) ) ) ) ) )
(ROOT (S (NP (NNP American) (CD 77)) (VP (VBD traveled) (ADJP (JJ undetected) (PP (IN for) (NP (CD 36) (NNS minutes)))) (PP (IN on) (NP (NP (DT a) (NN course)) (VP (VBG heading) (ADVP (RB due) (JJ east)) (PP (IN for) (NP (NNP Washington) (, ,) (NNP D.C.)))))))))
American 77 traveled on a course heading east to Washington, D.C
( ( American 77 ) ( traveled ( on ( ( a course ) ( ( heading east ) ( to ( Washington ( , D.C ) ) ) ) ) ) ) )
(ROOT (S (NP (NNP American) (CD 77)) (VP (VBD traveled) (PP (IN on) (NP (NP (DT a) (NN course)) (VP (VBG heading) (ADVP (RB east)) (PP (TO to) (NP (NNP Washington) (, ,) (NNP D.C)))))))))