to his a black goat , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (PP_2 (TO_0 to) (NP_3 (PRPDOLLAR_0 his) (NP_4 (ATNP_1 (DT_0 a) (JJ_1 black)) (NN_0 goat)))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))