in of a vibrant cluster , <apostrophe><apostrophe>
(ROOT_0 (S_0 (ATS_2 (PP_2 (IN_0 in) (PP_2 (IN_0 of) (NP_6 (ATNP_1 (DT_0 a) (JJ_1 vibrant)) (NN_1 cluster)))) (COMMA_0 ,)) (APOSTROPHE_0 <apostrophe><apostrophe>)))