the best valley of kids had of the skeletal perch .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NP_6 (ATNP_1 (DT_0 the) (JJS_0 best)) (NN_1 valley)) (PP_0 (IN_1 of) (NP_4 (NNS_1 kids)))) (VP_4 (VBD_2 had) (PP_0 (IN_1 of) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 skeletal)) (NN_1 perch))))) (DOT_0 .)))