The hijacker pilot then advanced the throttles to maximum power and dove toward the Pentagon.
( ( The ( hijacker pilot ) ) ( then ( ( ( ( ( advanced ( the throttles ) ) ( to ( maximum power ) ) ) and ) ( dove ( toward ( the Pentagon ) ) ) ) . ) ) )
(ROOT (S (NP (DT The) (NN hijacker) (NN pilot)) (ADVP (RB then)) (VP (VP (VBD advanced) (NP (DT the) (NNS throttles)) (PP (TO to) (NP (JJ maximum) (NN power)))) (CC and) (VP (VBD dove) (PP (IN toward) (NP (DT the) (NNP Pentagon))))) (. .)))
The hijacker has many years of experience flying.
( ( The hijacker ) ( ( has ( ( many years ) ( of ( experience flying ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN hijacker)) (VP (VBZ has) (NP (NP (JJ many) (NNS years)) (PP (IN of) (NP (NN experience) (VBG flying))))) (. .)))