what is the military unit whose command structures are indian expeditionary force b and indian expeditionary force b ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_commandStructure dbr_Indian_Expeditionary_Force_B sep_dot var_uri dbo_commandStructure dbr_Indian_Expeditionary_Force_B sep_dot var_uri a dbo_MilitaryUnit brack_close