a fleas and the classes of a group , been to tell stepping .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_2 (ATNP_0 (NP_6 (DT_0 a) (NNS_1 fleas)) (CC_0 and)) (NP_3 (NP_6 (DT_0 the) (NNS_1 classes)) (PP_0 (IN_1 of) (NP_5 (DT_0 a) (NN_2 group))))) (COMMA_0 ,)) (VP_4 (VBN_0 been) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 tell) (S_2 (VP_0 (VBG_0 stepping)))))))) (DOT_0 .)))