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(ROOT_0 (S_0 (ATS_3 (NP_1 (IN_2 If) (NN_3 group)) (VP_4 (ATVP_1 (VBD_1 heard) (RB_1 so)) (VP_1 (NP_2 (NP_4 (JJ_1 emerald)) (VP_2 (ATVP_4 (VBD_2 fell) (NP_1 (PRP_1 she))) (PP_2 (IN_0 on) (NP_3 (NP_5 (DT_0 a) (NN_2 boy)) (SBAR_0 (WHNP_0 (WDT_0 that)) (S_2 (NP_1 (PRP_0 She)) (NP_5 (DT_0 the) (NN_2 luggage))))))))))) (DOT_0 .)))