a best class quivered Wiping in visible knees .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_1 (DT_0 a) (JJS_0 best)) (NN_0 class)) (VP_4 (VBN_0 quivered) (S_2 (VP_0 (VBG_0 Wiping) (PP_2 (IN_0 in) (NP_3 (JJ_1 visible) (NNS_0 knees))))))) (DOT_0 .)))