| RAppT _ _ _ _ _ _ _ => "AppT"
| RAppCo _ _ _ _ _ _ _ _ _ => "AppCo"
| RAbsCo _ _ _ _ _ _ _ _ => "AbsCo"
| RApp _ _ _ _ _ _ _ => "App"
| RAppT _ _ _ _ _ _ _ => "AppT"
| RAppCo _ _ _ _ _ _ _ _ _ => "AppCo"
| RAbsCo _ _ _ _ _ _ _ _ => "AbsCo"
| RApp _ _ _ _ _ _ _ => "App"