It let if a surfer of anyone let crazy .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_1 It)) (VP_4 (VBD_0 let) (SBAR_0 (IN_2 if) (S_1 (NP_0 (NP_5 (DT_0 a) (NN_2 surfer)) (PP_1 (IN_1 of) (NP_2 (NN_3 anyone)))) (VP_5 (VBD_0 let) (ADJP_0 (JJ_0 crazy))))))) (DOT_0 .)))