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: trustworthy, milky, fair, equitable, decent
Example Output: milky

Example Input: fly, glide, flutter, eagle, train
Example Output: eagle

Example Input: fair, texture, unprejudiced, cool, well
Example Output:
unprejudiced