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: truss rod, emotional supports, emotional upsets, emotionalities, fret
Example Output: truss rod

Example Input: light, fine, fair, texture, variety
Example Output:
fine