whose associate is saif bin zayed al nahyan and has predecessor as hamdan bin zayed bin sultan al nahyan ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_associate dbr_Saif_bin_Zayed_Al_Nahyan sep_dot var_uri dbo_predecessor dbr_Hamdan_bin_Zayed_bin_Sultan_Al_Nahyan brack_close