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: penalty, handsome, suspension, hearing, fine
Example Output: handsome

Example Input: fine, even, unjust, impartial, fair
Example Output: even

Example Input: crane, ostrich, tackle, flamingo, steam roller
Example Output:
steam roller