(S (S (SBAR (IN After) (S (BASENP (DT the) (NN tiger)) (VP (VBD attacked) (BASENP (DT the) (NN worker))))) (COMMA ,) (S (BASENP (PRP it)) (VP (ADVP (RB then)) (VP (VP (VBD went) (PRT (RP on))) (S (VP (TO to) (VP (VB attack) (BASENP (DT the) (NN two) (JJ other) (NNS visitors))))))))) (PERIOD .))