Left image: A box of healthy salad. The left quarter of its lid is transparent, revealing the greens inside.
Right image: A box of salad that has very little greens. Its left quarter area contains greens, and the other three quarters looks almost empty with only some salad dressing and some  bread crumbs in it.
Image is funny because the box of salad was marketed in a way that showed a lot more salad content than was really present inside it.