Everyone who is a gourmet cook enjoys a wide variety of foods and spices
Since no one who enjoys a wide variety of foods and spices prefers bland foods to all other foods, it follows that anyone who prefers bland foods to all other foods is not a gourmet cook
All of the paintings in the Huang Collection are superb works of art. Since none of the paintings in the Huang Collection is by Roue, it stands to reason that no painting by Roue is a superb work of art.