`` under to Bolivian fleas and they then worried .
(ROOT_0 (S_0 (ATS_3 (ATS_4 (ATS_0 (TICK_0 ``) (PP_2 (IN_0 under) (PP_2 (TO_0 to) (NP_3 (NNP_1 Bolivian) (NNS_1 fleas))))) (CC_0 and)) (S_1 (NP_0 (PRP_1 they)) (VP_5 (ADVP_0 (RB_0 then)) (VBN_0 worried)))) (DOT_0 .)))