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: replace, ice, fire, ban, hire
Example Output: ice

Example Input: fine, content, acceptable, well, handsome
Example Output: handsome

Example Input: davit, digger, heron, hoist, crane
Example Output:
digger