himself <apostrophe>ll knew heavy in a boy , stones .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 himself)) (VP_4 (MD_0 <apostrophe>ll) (VP_1 (ATVP_0 (VP_5 (VBD_0 knew) (ADJP_0 (JJ_1 heavy) (PP_1 (IN_0 in) (NP_5 (DT_0 a) (NN_2 boy))))) (COMMA_0 ,)) (NP_3 (NNS_1 stones))))) (DOT_0 .)))