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: fair, unprejudiced, impartial, honorable, variety
Example Output: variety

Example Input: format, sort mail, make coffee, order office supplies, file
Example Output: format

Example Input: hunt, cow, fish, hiking, canoe
Example Output:
cow