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.

Input: Consider Input: crane, winch, mallet, winch, flamingo

Output: winch


Input: Consider Input: hoagie, submarine, place, open-faced, club

Output: place


Input: Consider Input: down, descending, lower, shameful, falling


Output: shameful