He had n<apostrophe>t think used from class own .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 He)) (VP_4 (ATVP_1 (VBD_1 had) (RB_1 n<apostrophe>t)) (VP_1 (VB_0 think) (VP_2 (VBN_0 used) (PP_2 (IN_0 from) (NP_3 (NN_3 class) (JJ_0 own))))))) (DOT_0 .)))