Several little grass fleas , , , happened overlooking the group .
(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_2 (ATNP_2 (ATNP_2 (ATNP_0 (JJ_0 Several) (JJ_1 little)) (NP_3 (NN_0 grass) (NNS_1 fleas))) (COMMA_0 ,)) (COMMA_0 ,)) (COMMA_0 ,)) (VP_4 (VBD_1 happened) (VP_2 (VBG_0 overlooking) (NP_5 (DT_0 the) (NN_2 group))))) (DOT_0 .)))