them higher and higher Trailing down .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 them)) (VP_4 (ATVP_0 (ADVP_0 (ATADVP_8 (JJR_0 higher) (CC_0 and)) (JJR_0 higher)) (VBG_0 Trailing)) (PRT_0 (RP_0 down)))) (DOT_0 .)))