Grape wine is produced by fermenting crushed grapes using various types of yeast. Yeast consumes the sugars in the grapes and converts them into alcohol. Different varieties of grapes and strains of yeasts produce different types of wine. Wines made from other fruits, such as apples and berries, are normally named after the fruit from which they are produced (for example, apple wine or elderberry wine) and are generically called fruit wine or country wine (not to be confused with the French term vin de pays). Others, such as barley wine and rice wine (i.e., sake), are made from starch-based materials and resemble beer and spirit more than wine, while ginger wine is fortified with brandy. In these cases, the term "wine" refers to the higher alcohol content rather than the production process.^[3] The commercial use of the English word "wine" (and its equivalent in other languages) is protected by law in many jurisdictions.[