below his friend brushed down on higher .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ADVP_0 (RB_0 below)) (NP_0 (PRPDOLLAR_0 his) (NN_0 friend))) (VP_3 (ATVP_3 (VBD_2 brushed) (PRT_0 (RP_0 down))) (PP_2 (IN_0 on) (NP_6 (JJR_0 higher))))) (DOT_0 .)))