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))))) (. .)))
Fighter jets were dispatched from Otis Air Force Base.
( ( Fighter jets ) ( ( were ( dispatched ( from ( Otis ( Air ( Force Base ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Fighter) (NNS jets)) (VP (VBD were) (VP (VBN dispatched) (PP (IN from) (NP (NNP Otis) (NNP Air) (NNP Force) (NNP Base))))) (. .)))