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(ROOT_0 (S_0 (ATS_3 (NP_1 (ATNP_0 (JJ_0 plastic) (JJ_1 black)) (NP_6 (DT_0 the) (NNS_1 clouds))) (VP_4 (ATVP_3 (ATVP_2 (VBD_1 was) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 do) (S_2 (VP_0 (ATVP_4 (VBG_0 stepping) (NP_0 (DT_1 that))) (PP_2 (IN_0 on) (NP_3 (NP_5 (DT_0 the) (NN_2 group)) (PP_2 (IN_0 In) (NP_3 (NP_5 (DT_0 A) (NN_2 beak)) (PP_0 (IN_1 of) (NP_5 (DT_0 the) (NN_2 group))))))))))))) (COMMA_0 ,)) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 be)))))) (DOT_0 .)))