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: fritter, sweet roll, whittle, seperate, divide
Example Output: sweet roll

Example Input: lifeline, knockout, deck, punch, tko
Example Output: lifeline

Example Input: whittle, blueberry, fritter, goodbye, squander
Example Output:
blueberry