He could really <apostrophe>m when the diamond pushed .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 He)) (VP_4 (ATVP_1 (MD_0 could) (ADVP_0 (RB_0 really))) (VP_5 (VBP_0 <apostrophe>m) (SBAR_0 (WHADVP_0 (WRB_0 when)) (S_1 (NP_0 (DT_0 the) (NN_2 diamond)) (VP_5 (VBD_1 pushed))))))) (DOT_0 .)))