Using Fuzzy concepts to define sandwiches, a peanut butter and jelly sandwich has an unweighted score of 7 and is categorized as a sandwich, while a hamburger without bun has an unweighted score of 1, and is not categorized as a sandwich.
Peanut butter and jelly sandwich 7 Sandwich Hamburger without bun 1 Burger (patty) with toppings 
