The friend was mattered with these surfer .
(ROOT_0 (S_0 (ATS_3 (NP_1 (DT_1 The) (NN_2 friend)) (VP_4 (VBD_1 was) (VP_2 (VBN_0 mattered) (PP_0 (IN_1 with) (NP_5 (DT_0 these) (NN_2 surfer)))))) (DOT_0 .)))