He piled his best friends to think on to keep off : The be water to the cows .
(ROOT_0 (S_0 (ATS_3 (ATS_4 (S_1 (NP_0 (PRP_0 He)) (VP_5 (VBD_2 piled) (S_2 (NP_1 (ATNP_0 (PRPDOLLAR_0 his) (JJS_0 best)) (NNS_0 friends)) (VP_0 (TO_0 to) (VP_1 (ATVP_0 (VB_0 think) (PRT_0 (RP_0 on))) (SBAR_0 (VP_0 (TO_0 to) (VP_1 (VB_0 keep) (PRT_0 (RP_0 off)))))))))) (COLON_0 :)) (S_1 (NP_0 (DT_1 The)) (VP_5 (ATVP_4 (VB_0 be) (NP_2 (NN_3 water))) (PP_2 (TO_0 to) (NP_2 (DT_0 the) (NNS_1 cows)))))) (DOT_0 .)))