The Vice President was mistaken in his belief that shootdown authorization had been passed to the pilots flying at NORAD's direction.
( ( The ( Vice President ) ) ( ( was ( ( mistaken ( in ( his belief ) ) ) ( that ( ( shootdown authorization ) ( had ( been ( passed ( to ( ( the pilots ) ( flying ( at ( ( NORAD 's ) direction ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Vice) (NNP President)) (VP (VBD was) (VP (VBN mistaken) (PP (IN in) (NP (PRP$ his) (NN belief))) (SBAR (IN that) (S (NP (NN shootdown) (NN authorization)) (VP (VBD had) (VP (VBN been) (VP (VBN passed) (PP (TO to) (NP (NP (DT the) (NNS pilots)) (VP (VBG flying) (PP (IN at) (NP (NP (NNP NORAD) (POS 's)) (NN direction))))))))))))) (. .)))
The Vice President's belief about the shootdown authorization was correct.
( ( ( ( The ( Vice ( President 's ) ) ) belief ) ( about ( the ( shootdown authorization ) ) ) ) ( ( was correct ) . ) )
(ROOT (S (NP (NP (NP (DT The) (NNP Vice) (NNP President) (POS 's)) (NN belief)) (PP (IN about) (NP (DT the) (NN shootdown) (NN authorization)))) (VP (VBD was) (ADJP (JJ correct))) (. .)))