I listened for mounds Trailing than her face-up .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 I)) (VP_4 (VBN_0 listened) (PP_0 (IN_1 for) (NP_2 (NP_4 (NNS_1 mounds)) (VP_2 (VBG_0 Trailing) (PP_2 (IN_0 than) (NP_3 (PRPDOLLAR_0 her) (NN_0 face-up)))))))) (DOT_0 .)))