to these schoolhouse knees kids he slid the black boulders by boy .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (S_2 (VP_0 (TO_0 to) (VP_1 (NP_2 (ATNP_2 (ATNP_1 (DT_0 these) (JJ_1 schoolhouse)) (NNS_0 knees)) (NNS_1 kids))))) (NP_0 (PRP_1 he))) (VP_3 (VBD_0 slid) (NP_3 (NP_5 (ATNP_1 (DT_0 the) (JJ_1 black)) (NNS_1 boulders)) (PP_0 (IN_1 by) (NP_5 (NN_3 boy)))))) (DOT_0 .)))