Examples of hierarchy level literals:
FiscalQuarter.Quarter and Fiscal.Quarter
because there are two hierarchies, FiscalQuarter and Fiscal, which both have level Quarter, you must qualify the quarter by the hierarchy to which it belongs.
Product.Product.”Product Family” and Product.ProductLine.”Product Family”
because there are two hierarchies, Product and ProductLine, which both have level .”Product Family”, you must qualify the quarter by the hierarchy to which it belongs.
Product.Model and Model
because there is only one level called Model, you can qualify the level with the dimension to which it belongs, or just use the level name.