what is the military unit whose command structures are 446th airlift wing and 446th airlift wing ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_commandStructure dbr_446th_Airlift_Wing sep_dot var_uri dbo_commandStructure dbr_446th_Airlift_Wing sep_dot var_uri a dbo_MilitaryUnit brack_close