it refer At their arm , she was a purple granite .
(ROOT_0 (S_0 (ATS_3 (ATS_1 (ATS_0 (S_1 (NP_0 (PRP_1 it)) (VP_5 (VBP_0 refer) (PP_2 (IN_0 At) (NP_3 (PRPDOLLAR_0 their) (NN_0 arm))))) (COMMA_0 ,)) (NP_0 (PRP_1 she))) (VP_3 (VBD_1 was) (NP_6 (ATNP_1 (DT_0 a) (JJ_1 purple)) (NN_1 granite)))) (DOT_0 .)))