fleece flats was why to snow that to rattle boulders on a guy .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NN_1 fleece) (NNS_0 flats)) (VP_4 (VBD_1 was) (VP_2 (VBN_0 why) (PP_2 (TO_0 to) (NP_3 (NP_5 (NN_3 snow)) (SBAR_0 (WHNP_0 (WDT_0 that)) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 rattle) (NP_3 (NP_6 (NNS_1 boulders)) (PP_0 (IN_1 on) (NP_5 (DT_0 a) (NN_2 guy))))))))))))) (DOT_0 .)))