, on Quechua kids but had quivered .
(ROOT_0 (S_0 (ATS_3 (ATS_4 (ATS_0 (COMMA_0 ,) (PP_2 (IN_0 on) (NP_3 (NNP_1 Quechua) (NNS_1 kids)))) (CC_0 but)) (S_1 (VP_0 (VBD_2 had) (VP_2 (VBN_0 quivered))))) (DOT_0 .)))