Vice President Cheney was asked for authority to engage the aircraft.
( ( Vice ( President Cheney ) ) ( ( was ( ( asked ( for authority ) ) ( to ( engage ( the aircraft ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Vice) (NNP President) (NNP Cheney)) (VP (VBD was) (VP (VBN asked) (PP (IN for) (NP (NN authority))) (S (VP (TO to) (VP (VB engage) (NP (DT the) (NN aircraft))))))) (. .)))
The aircraft engaged without asking for authorization.
( ( The aircraft ) ( ( engaged ( without ( asking ( for authorization ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN aircraft)) (VP (VBD engaged) (PP (IN without) (S (VP (VBG asking) (PP (IN for) (NP (NN authorization))))))) (. .)))