what is the military unit whose command structures are people's liberation army ground force and people's liberation army ground force ?
SELECT DISTINCT var_uri where brack_open var_uri dbo_commandStructure dbr_People's_Liberation_Army_Ground_Force sep_dot var_uri dbo_commandStructure dbr_People's_Liberation_Army_Ground_Force sep_dot var_uri a dbo_MilitaryUnit brack_close