(S (S (SBAR (WHADVP (WRB When)) (S (BASENP (PRP he)) (VP (VBD came) (PRT (RP out))))) (COMMA ,) (S (NP (BASENP (DT the) (NN bike)) (CONJP (IN along) (IN with)) (BASENP (PRPD its) (NN chain))) (VP (VBD had) (VP (VBN vanished))))) (PERIOD .))