They refer when Noah could give up moan scarves .
(ROOT_0 (S_0 (ATS_3 (NP_1 (PRP_0 They)) (VP_4 (VBP_0 refer) (SBAR_0 (WHADVP_0 (WRB_0 when)) (S_1 (NP_0 (NNP_0 Noah)) (VP_5 (MD_0 could) (VP_1 (ATVP_0 (VB_0 give) (PRT_0 (RP_0 up))) (NP_3 (NN_0 moan) (NNS_1 scarves)))))))) (DOT_0 .)))