Normalize the relational database schema, using this schema: Customer(custId, firstName, lastName, street, city, state, zip, areaCode, number, creditLimit) Supplier(supplierNo, supName, countryCode, areaCode, number, street, city, state, zipOrPostal, country, contactName) Order(orderNo, date, totalAmount, tax, delToStreet, delToCity, delToState, delToZip, delToAreaCode, delToNumber, custId) Item(itemNo, itemName, unitPrice, qtyOnHand, reorderPoint) Contains(orderNo, itemNo, quantity) Supplies(supplierNo, itemNo, unitCost) Remember its primaryKey and foreignKey.