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(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (SBAR_0 (ATSBAR_4 (RB_0 then) (IN_2 since)) (S_1 (NP_0 (PRP_1 it)) (VP_5 (ATVP_3 (ATVP_2 (VB_0 be) (PRT_0 (RP_0 up))) (COMMA_0 ,)) (S_2 (VP_0 (TO_0 to) (VP_1 (VB_0 let))))))) (COMMA_0 ,)) (NP_0 (NN_2 car))) (VP_3 (VBD_1 howled) (ADJP_0 (ATADJP_0 (JJ_1 vibrant) (COMMA_0 ,)) (S_2 (VP_0 (ATVP_1 (VP_5 (ATVP_3 (VBD_1 fixed) (ADJP_0 (ATADJP_0 (RB_1 n<apostrophe>t) (JJ_0 muffled)) (JJ_1 grassy))) (PP_0 (IN_1 on) (NP_2 (RB_0 never)))) (CC_0 and)) (NP_6 (DT_0 a) (NNS_1 clouds))))))) (DOT_0 .)))