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: dally, misuse, fritter, whittle, patty
Example Output: patty

Example Input: standard, general, regular, universal, commander
Example Output: commander

Example Input: brash, frank, integrity, precise, bun
Example Output:
bun