lazily , it <apostrophe>s of the surfers .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_2 (ADVP_0 (RB_0 lazily)) (COMMA_0 ,)) (NP_0 (PRP_1 it))) (VP_3 (VBZ_0 <apostrophe>s) (PP_1 (IN_1 of) (NP_2 (DT_0 the) (NNS_1 surfers))))) (DOT_0 .)))