I happened the kids by the heavy chill .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 I)) (VP_4 (VBD_0 happened) (NP_3 (NP_6 (DT_0 the) (NNS_1 kids)) (PP_0 (IN_1 by) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 heavy)) (NN_1 chill)))))) (DOT_0 .)))