It know her was They on a grass for the surfer .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 It)) (VP_4 (VBP_0 know) (SBAR_0 (S_1 (NP_1 (PRP_0 her)) (VP_5 (ATVP_4 (VBD_2 was) (NP_1 (PRP_0 They))) (PP_2 (IN_0 on) (NP_3 (NP_5 (DT_0 a) (NN_2 grass)) (PP_2 (IN_0 for) (NP_5 (DT_0 the) (NN_2 surfer)))))))))) (DOT_0 .)))