he guess it tried black hours , on the friend .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (S_1 (NP_0 (PRP_1 he)) (VP_5 (VBP_0 guess))) (NP_0 (PRP_1 it))) (VP_3 (ATVP_3 (ATVP_2 (VBD_2 tried) (NP_3 (JJ_1 black) (NNS_0 hours))) (COMMA_0 ,)) (PP_2 (IN_0 on) (NP_5 (DT_0 the) (NN_2 friend))))) (DOT_0 .)))