F-15 fighters were scrambled at 8:46 from Otis Air Force Base.
( ( F-15 fighters ) ( ( were ( ( scrambled ( at 8:46 ) ) ( from ( Otis ( Air ( Force Base ) ) ) ) ) ) . ) )
(ROOT (S (NP (NN F-15) (NNS fighters)) (VP (VBD were) (VP (VBD scrambled) (PP (IN at) (NP (CD 8:46))) (PP (IN from) (NP (NNP Otis) (NNP Air) (NNP Force) (NNP Base))))) (. .)))
The F-15 fighters were carrying air-to-air missiles.
( ( The ( F-15 fighters ) ) ( ( were ( carrying ( air-to-air missiles ) ) ) . ) )
(ROOT (S (NP (DT The) (NN F-15) (NNS fighters)) (VP (VBD were) (VP (VBG carrying) (NP (JJ air-to-air) (NNS missiles)))) (. .)))