while grass had the story one than that grass , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (SBAR_0 (IN_2 while) (S_1 (NP_0 (NN_2 grass)) (VP_5 (VBD_1 had) (NP_3 (NP_5 (DT_0 the) (NN_2 story)) (PP_0 (ATPP_0 (NP_4 (CD_0 one)) (IN_1 than)) (NP_1 (DT_1 that) (NN_2 grass))))))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))