They could to rattle the single valley of anything .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (MD_0 could) (VP_1 (TO_0 to) (VP_1 (VB_0 rattle) (NP_3 (NP_6 (ATNP_1 (DT_0 the) (JJ_1 single)) (NN_1 valley)) (PP_0 (IN_1 of) (NP_5 (NN_3 anything)))))))) (DOT_0 .)))