in green heavy Several flats , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (PP_2 (IN_0 in) (NP_3 (ATNP_0 (ATNP_0 (JJ_0 green) (JJ_1 heavy)) (JJ_0 Several)) (NNS_0 flats))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))