sky knees <apostrophe>m by yawn boulders , the burgundy ride .
(ROOT_0 (S_0 (ATS_3 (NP_1 (NN_1 sky) (NNS_0 knees)) (VP_4 (ATVP_0 (VP_5 (VBP_0 <apostrophe>m) (PP_2 (IN_0 by) (NP_3 (NN_0 yawn) (NNS_1 boulders)))) (COMMA_0 ,)) (NP_6 (ATNP_1 (DT_0 the) (JJ_1 burgundy)) (NN_1 ride)))) (DOT_0 .)))