on eight structures the surfer was pink on freezing .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (PP_1 (IN_1 on) (NP_2 (CD_0 eight) (NNS_0 structures))) (NP_5 (DT_0 the) (NN_2 surfer))) (VP_3 (VBD_1 was) (ADJP_0 (JJ_1 pink) (PP_1 (IN_1 on) (NP_2 (NN_3 freezing)))))) (DOT_0 .)))