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(ROOT_0 (S_0 (ATS_3 (NP_1 (NN_1 grass) (NNS_0 eyes)) (VP_4 (ATVP_1 (VBD_0 happened) (RB_1 n<apostrophe>t)) (VP_5 (MD_0 would) (VP_1 (VB_0 think) (PRT_0 (RP_0 up)))))) (DOT_0 .)))