The ERD below represents a supermarket. Construct a relational schema for the diagram. date totalAmount lastName firstName Street city orderNo state tax zip custName custAdd deliver to Address creditLimit Order zip custid M M boot (street state city Buys M Customer deliver To Phone areaCode Phone Contains Quantity number areaCode number unitCost reorderPoint M N Supplier Supplies Item qtyOnHand supplierNo contactName Item No ItemName unitPrice supAdd supName street country city Zip/ postalCode Phone state countryCode areaCode number