There is a bomb on board and are going back to the airport, and to have our demands [unintelligible].
( ( ( ( ( There ( ( ( is ( ( a bomb ) ( on board ) ) ) and ) ( are ( ( going back ) ( to ( the airport ) ) ) ) ) ) , ) and ) ( ( to ( have ( our demands ) ) ) ( -LSB- ( unintelligible -RSB- ) ) ) ) . )
(ROOT (S (S (NP (EX There)) (VP (VP (VBZ is) (NP (NP (DT a) (NN bomb)) (PP (IN on) (NP (NN board))))) (CC and) (VP (VBP are) (VP (VBG going) (ADVP (RB back)) (PP (TO to) (NP (DT the) (NN airport))))))) (, ,) (CC and) (S (S (VP (TO to) (VP (VB have) (NP (PRP$ our) (NNS demands))))) (VP (VBZ -LSB-) (NP (JJ unintelligible) (NNS -RSB-)))) (. .)))
The bomb on the plane was C4 explosive hidden in a backpack.
( ( ( The bomb ) ( on ( the plane ) ) ) ( ( was ( ( C4 explosive ) ( hidden ( in ( a backpack ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN bomb)) (PP (IN on) (NP (DT the) (NN plane)))) (VP (VBD was) (NP (NP (NNP C4) (NNP explosive)) (VP (VBN hidden) (PP (IN in) (NP (DT a) (NN backpack)))))) (. .)))