he could be think up n<apostrophe>t for from the stuff what the stuff a just Several mounds Maybe across <apostrophe><apostrophe> .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_1 he)) (VP_4 (MD_0 could) (VP_1 (VB_0 be) (VP_2 (ATVP_4 (ATVP_2 (VB_0 think) (PRT_0 (RP_0 up))) (PP_2 (ATPP_0 (RB_1 n<apostrophe>t) (IN_1 for)) (PP_2 (IN_0 from) (NP_3 (NP_5 (DT_0 the) (NN_2 stuff)) (SBAR_0 (WHNP_0 (WP_0 what)) (S_2 (NP_1 (DT_0 the) (NN_2 stuff)) (NP_5 (ATNP_1 (DT_0 a) (ADJP_0 (RB_0 just) (JJ_0 Several))) (NNS_1 mounds)))))))) (PP_2 (ATPP_0 (ADVP_0 (RB_0 Maybe)) (IN_2 across)) (APOSTROPHE_0 <apostrophe><apostrophe>)))))) (DOT_0 .)))