(S (S (S (S (BASENP (NNP Vessel) (NNP 3504)) (VP (VBD was) (VP (VBN dispatched) (S (VP (TO to) (VP (VB aid) (BASENP (DT the) (VBN stricken) (NN ship)))))))) (CONJP (COMMA ,) (CC but)) (S (BASENP (DT the) (NN boat)) (VP (VBD was) (VP (ADVP (RB also)) (VP (VBN troubled) (PP (IN by) (BASENP (JJ strong) (NNS waves)))))))) (CC and) (S (ADVP (RB eventually)) (S (BASENP (NN contact)) (VP (VBD was) (VP (VBN lost)))))) (PERIOD .))