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: flutter, soar, bee, jog, fly
Example Output: bee

Example Input: invent, unlicensed, brownies, lie, fudge
Example Output: brownies

Example Input: tone, alright, color, cool, fair
Example Output:
alright