(S (S (S (BASENP (DT The) (NN boat)) (VP (VBD capsized) (PP (IN in) (BASENP (JJ calm) (NNS seas))))) (SBAR (ADVP (RB soon)) (SBAR (IN after) (S (BASENP (PRP it)) (VP (VBD left) (COMMA ,) (S (VP (VP (VBG trapping) (BASENP (NN many))) (ADVP (RB below))))))))) (PERIOD .))