In all of these instances, the job of the controller was to reach out to the aircraft, the parent company of the aircraft, and other planes in the vicinity in an attempt to reestablish communications and set the aircraft back on course.
( ( In ( all ( of ( these instances ) ) ) ) ( , ( ( ( the job ) ( of ( the controller ) ) ) ( ( was ( to ( ( reach out ) ( to ( ( ( ( ( ( the aircraft ) , ) ( ( the ( parent company ) ) ( of ( the aircraft ) ) ) ) , ) and ) ( ( other planes ) ( in ( ( the vicinity ) ( in ( an ( attempt ( to ( ( ( reestablish communications ) and ) ( ( ( set ( the aircraft ) ) back ) ( on course ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (NP (DT all)) (PP (IN of) (NP (DT these) (NNS instances))))) (, ,) (NP (NP (DT the) (NN job)) (PP (IN of) (NP (DT the) (NN controller)))) (VP (VBD was) (S (VP (TO to) (VP (VB reach) (PRT (RP out)) (PP (TO to) (NP (NP (DT the) (NN aircraft)) (, ,) (NP (NP (DT the) (NN parent) (NN company)) (PP (IN of) (NP (DT the) (NN aircraft)))) (, ,) (CC and) (NP (NP (JJ other) (NNS planes)) (PP (IN in) (NP (NP (DT the) (NN vicinity)) (PP (IN in) (NP (DT an) (NN attempt) (S (VP (TO to) (VP (VP (VB reestablish) (NP (NNS communications))) (CC and) (VP (VB set) (NP (DT the) (NN aircraft)) (PRT (RP back)) (PP (IN on) (NP (NN course)))))))))))))))))) (. .)))
If an aircraft gets off the course, the controller is responsible to what happens to it.
( ( If ( ( an aircraft ) ( ( gets off ) ( the course ) ) ) ) ( , ( ( the controller ) ( ( is ( responsible ( to ( what ( happens ( to it ) ) ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (DT an) (NN aircraft)) (VP (VBZ gets) (PRT (RP off)) (NP (DT the) (NN course))))) (, ,) (NP (DT the) (NN controller)) (VP (VBZ is) (ADJP (JJ responsible) (PP (TO to) (SBAR (WHNP (WP what)) (S (VP (VBZ happens) (PP (TO to) (NP (PRP it))))))))) (. .)))