From this and other evidence, we believe the hijacking began at 8:14 or shortly thereafter.
( ( From ( ( this and ) ( other evidence ) ) ) ( , ( we ( ( believe ( ( the hijacking ) ( began ( ( ( at 8:14 ) or ) ( shortly thereafter ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN From) (NP (NP (DT this)) (CC and) (NP (JJ other) (NN evidence)))) (, ,) (NP (PRP we)) (VP (VBP believe) (SBAR (S (NP (DT the) (NN hijacking)) (VP (VBD began) (UCP (PP (IN at) (NP (CD 8:14))) (CC or) (ADVP (RB shortly) (RB thereafter))))))) (. .)))
We believe the hijacking began at 8:14.
( We ( ( believe ( ( the hijacking ) ( began ( at 8:14 ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP believe) (SBAR (S (NP (DT the) (NN hijacking)) (VP (VBD began) (PP (IN at) (NP (CD 8:14))))))) (. .)))