knees might have out the purple light for lip .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NNS_0 knees)) (VP_4 (MD_0 might) (VP_1 (ATVP_0 (VB_0 have) (PRT_0 (RP_0 out))) (NP_3 (NP_6 (ATNP_1 (DT_0 the) (JJ_1 purple)) (NN_1 light)) (PP_0 (IN_1 for) (NP_5 (NN_3 lip))))))) (DOT_0 .)))