dropped teaching of Another , <apostrophe><apostrophe> he had doing really .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (ATS_0 (S_2 (VP_0 (VBD_2 dropped) (VP_2 (VBG_0 teaching) (ADVP_0 (IN_1 of) (DT_1 Another))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)) (NP_0 (PRP_1 he))) (VP_3 (VBD_1 had) (VP_2 (VBG_0 doing) (ADVP_0 (RB_0 really))))) (DOT_0 .)))