The call lasted about two minutes, after which Policastro and a colleague tried unsuccessfully to contact the flight.
( ( The call ) ( ( lasted ( about ( ( ( two minutes ) , ) ( ( after which ) ( ( ( Policastro and ) ( a colleague ) ) ( ( tried unsuccessfully ) ( to ( contact ( the flight ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN call)) (VP (VBD lasted) (PP (IN about) (NP (NP (CD two) (NNS minutes)) (, ,) (SBAR (WHPP (IN after) (WHNP (WDT which))) (S (NP (NP (NNP Policastro)) (CC and) (NP (DT a) (NN colleague))) (VP (VBD tried) (ADVP (RB unsuccessfully)) (S (VP (TO to) (VP (VB contact) (NP (DT the) (NN flight))))))))))) (. .)))
There was no one available in the cockpit to answer the call.
( There ( ( ( ( was ( no one ) ) available ) ( in ( the ( cockpit ( to ( answer ( the call ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBD was) (ADVP (RB no) (NP (CD one))) (ADJP (JJ available)) (PP (IN in) (NP (DT the) (NN cockpit) (S (VP (TO to) (VP (VB answer) (NP (DT the) (NN call)))))))) (. .)))