he think on a surfers queasy , spit quivered to Maybe was .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_1 he)) (VP_4 (ATVP_3 (ATVP_2 (ATVP_4 (VB_0 think) (PP_1 (IN_1 on) (NP_2 (DT_0 a) (NNS_1 surfers)))) (ADVP_0 (RB_0 queasy))) (COMMA_0 ,)) (S_2 (VP_0 (VBD_2 spit) (VP_2 (VBN_0 quivered) (S_2 (VP_0 (TO_0 to) (VP_1 (ADVP_0 (RB_0 Maybe)) (VBD_1 was))))))))) (DOT_0 .)))