They gaze flung slept by gravel silly . conference felt .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (VBP_0 gaze) (SBAR_0 (S_1 (VP_0 (ATVP_4 (VBG_0 flung) (NP_0 (NNP_0 slept))) (PP_2 (IN_0 by) (NP_3 (NN_3 gravel) (JJ_0 silly)))))))) (DOT_0 .)) (NP_0 (NN_2 conference))) (VP_3 (VBD_0 felt))) (DOT_0 .)))