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

Example Input: flaxen, texture, alright, fair, even
Example Output: alright

Example Input: impartial, pale, fair, dishonest, well
Example Output:
pale