( ( ( ( Breaking down ) ( ( the problems ) ( of ( deep-sea salvage ) ) ) ) systematically ) ( , ( he ( ( determines ( ( the ( best approach ) ) ( to ( be ( ( the use ) ( of ( an ( unmanned ( , ( remote-control vehicle ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (VBG Breaking) (PRT (RP down)) (NP (NP (DT the) (NNS problems)) (PP (IN of) (NP (JJ deep-sea) (NN salvage)))) (ADVP (RB systematically)))) (, ,) (NP (PRP he)) (VP (VBZ determines) (S (NP (DT the) (JJS best) (NN approach)) (VP (TO to) (VP (VB be) (NP (NP (DT the) (NN use)) (PP (IN of) (NP (DT an) (JJ unmanned) (, ,) (JJ remote-control) (NN vehicle)))))))) (. .)))
Breaking down the problems of deep-sea salvage systematically, he determines the best approach to be the use of an unmanned, remote-control vehicle.
(ROOT (S (NP (NNP Remote-control) (NNS vehicles)) (VP (VBP are) (ADJP (JJ able) (S (VP (TO to) (VP (VB go) (PP (TO to) (NP (DT the) (JJS deepest) (NN ocean) (NN floor)))))))) (. .)))