The emergency call lasted approximately 25 minutes, as Ong calmly and professionally relayed information about events taking place aboard the airplane to authorities on the ground.
( ( The ( emergency call ) ) ( ( ( ( ( ( ( lasted ( approximately ( 25 minutes ) ) ) , ) ( as Ong ) ) calmly ) and ) ( professionally ( ( ( relayed information ) ( about events ) ) ( ( ( taking place ) ( aboard ( the airplane ) ) ) ( to ( authorities ( on ( the ground ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN emergency) (NN call)) (VP (VP (VBD lasted) (ADVP (RB approximately) (NP (CD 25) (NNS minutes))) (, ,) (PP (IN as) (NP (NNP Ong))) (ADVP (RB calmly))) (CC and) (VP (ADVP (RB professionally)) (VBD relayed) (NP (NN information)) (PP (IN about) (NP (NNS events))) (S (VP (VBG taking) (NP (NN place)) (PP (IN aboard) (NP (DT the) (NN airplane))) (PP (TO to) (NP (NP (NNS authorities)) (PP (IN on) (NP (DT the) (NN ground))))))))) (. .)))
Ong relayed information about the events to authorities on the ground for about 25 minutes.
( Ong ( ( ( ( relayed information ) ( about ( the events ) ) ) ( to ( authorities ( on ( ( the ground ) ( for ( ( about 25 ) minutes ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Ong)) (VP (VBD relayed) (NP (NN information)) (PP (IN about) (NP (DT the) (NNS events))) (PP (TO to) (NP (NP (NNS authorities)) (PP (IN on) (NP (NP (DT the) (NN ground)) (PP (IN for) (NP (QP (RB about) (CD 25)) (NNS minutes)))))))) (. .)))