by a slept A purple songs should mattered them .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (PP_1 (IN_1 by) (NP_2 (DT_0 a) (NNP_1 slept))) (NP_5 (ATNP_1 (DT_0 A) (JJ_1 purple)) (NNS_1 songs))) (VP_3 (MD_0 should) (VP_1 (VBN_0 mattered) (NP_1 (PRP_0 them))))) (DOT_0 .)))