(S (S (S (BASENP (NNS Witnesses)) (VP (VBD looked) (PRT (RP on)))) (SBAR (IN as) (S (BASENP (DT the) (NN man)) (VP (VBD was) (VP (VP (VBN swept) (PRT (RP out))) (PP (TO to) (BASENP (NN sea)))))))) (PERIOD .))