which office holder's military branch is united states army reserve and vice president is alben w . barkley ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_militaryBranch dbr_United_States_Army_Reserve sep_dot var_uri dbo_vicePresident dbr_Alben_W._Barkley sep_dot var_uri a dbo_OfficeHolder brack_close