They mutter it could really own .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (VBP_0 mutter) (SBAR_0 (S_1 (NP_0 (PRP_1 it)) (VP_5 (ATVP_1 (MD_0 could) (ADVP_0 (RB_0 really))) (ADJP_0 (JJ_0 own))))))) (DOT_0 .)))