who is the office holder for constituencies dublin county and dublin county ?
SELECT DISTINCT var_uri where brack_open var_uri dbp_constituency dbr_Dublin_County_ attr_open Dáil_Éireann_constituency attr_close sep_dot var_uri dbp_constituency dbr_Dublin_County_ attr_open Dáil_Éireann_constituency attr_close sep_dot var_uri a dbo_OfficeHolder brack_close