the skeletal virtue for two grimaced sitting up .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NP_6 (ATNP_1 (DT_0 the) (JJ_1 skeletal)) (NN_1 virtue)) (PP_0 (IN_1 for) (NP_5 (CD_0 two)))) (VP_4 (VBD_1 grimaced) (VP_2 (VBG_0 sitting) (PRT_0 (RP_0 up))))) (DOT_0 .)))