Medallic Sushi uses four basic ingredients in their menu choices: rice; vinegar; fish; and ginger. The sushi sell for the following prices: Bronze sells for $2.55 Silver sells for $2.75 Gold sells for $3; and The new Platinum sells for $4. A Bronze needs 2 ounces of rice, 2 ounces of fish and 2 units of ginger. A Silver needs 4 ounces of rice, 2 ounces of fish and 1 unit of ginger. An Gold requires 3 ounces each of rice and fish, plus 2 units each of vinegar and ginger. Their newest menu item, the Platinum needs 5 ounces of rice, 4 ounces of fish and 2 units each of ginger and vinegar. Each morning they get delivery of 500 ounces of rice, 250 ounces of fish, 600 units each of ginger and vinegar. Write the full formal model for this scenario.