It piled back was a goofy mahogany of surfers .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 It)) (VP_4 (ATVP_1 (VBD_1 piled) (RB_1 back)) (VP_5 (VBD_1 was) (NP_3 (NP_6 (ATNP_1 (DT_0 a) (JJ_1 goofy)) (NN_1 mahogany)) (PP_0 (IN_1 of) (NP_4 (NNS_1 surfers))))))) (DOT_0 .)))