a about mountains really slithered be and was the muscle knees .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_0 (DT_0 a) (ADJP_0 (RP_0 about))) (NNS_0 mountains)) (VP_4 (ATVP_1 (ATVP_2 (ATVP_0 (ADVP_0 (RB_0 really)) (VBD_2 slithered)) (VP_1 (VB_0 be))) (CC_0 and)) (VP_5 (VBD_1 was) (NP_3 (ATNP_0 (DT_0 the) (NN_3 muscle)) (NNS_0 knees))))) (DOT_0 .)))