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: folder, hardware, file, firewall, support
Example Output: support

Example Input: fib, fudge, fix, cookies, falsehood
Example Output: cookies

Example Input: windy, fair, just, ok, loyal
Example Output:
windy