it howled the swollen friend , <apostrophe><apostrophe> <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (ATS_0 (S_1 (NP_0 (PRP_1 it)) (VP_5 (VBD_0 howled) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 swollen)) (NN_1 friend)))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)) (APOSTROPHE_0 <apostrophe><apostrophe>)))