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, fried, cake, patty, seperate
Example Output: seperate

Example Input: decent, well, flaxen, fair, unjust
Example Output: flaxen

Example Input: absorption, fat, big, heavy, angular momentum
Example Output:
big