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(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_0 (ATS_0 (COMMA_0 ,) (PP_2 (IN_0 Within) (NP_3 (NP_5 (DT_0 the) (NN_2 surfer)) (SBAR_0 (IN_2 while) (S_1 (NP_0 (PRP_1 it)) (VP_5 (MD_0 might) (VP_1 (VB_0 do)))))))) (COMMA_0 ,)) (NP_0 (PRP_1 he))) (VP_3 (ATVP_1 (VBD_1 slithered) (RB_1 Noah)) (VP_5 (MD_0 would) (VP_1 (VB_0 march) (NP_0 (PRPDOLLAR_0 her) (NN_0 guy)))))) (DOT_0 .)))