them blackened refer on A many hat the luggage .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 them)) (VP_4 (VBN_0 blackened) (S_2 (VP_0 (ATVP_1 (VBP_0 refer) (PP_2 (IN_0 on) (NP_6 (ATNP_1 (DT_0 A) (JJ_1 many)) (NN_1 hat)))) (NP_5 (DT_0 the) (NN_2 luggage)))))) (DOT_0 .)))