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: motherboard, schedule appointments, schedule, file, type
Example Output: motherboard

Example Input: fat, ugly, sugar, salt, protein
Example Output: ugly

Example Input: divide, croquet, fritter, squander, spend
Example Output:
croquet