I <apostrophe>m Off his hat , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (SBAR_0 (S_1 (NP_0 (PRP_1 I)) (VP_5 (VBP_0 <apostrophe>m) (PP_2 (IN_0 Off) (NP_3 (PRPDOLLAR_0 his) (NN_0 hat)))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))