what is the military unit whose command structures are 12th corps and 12th corps ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_commandStructure dbr_12th_Corps_ attr_open Yugoslav_Partisans attr_close sep_dot var_uri dbo_commandStructure dbr_12th_Corps_ attr_open Yugoslav_Partisans attr_close sep_dot var_uri a dbo_MilitaryUnit brack_close