Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Example Input: happy, fine, mad, level, decent
Example Output: level

Example Input: basic, general, common, plain, admiral
Example Output: admiral

Example Input: fudge, replace, brownie, mangle, fix
Example Output:
brownie