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: nervous, bored, emotional supports, chord, fret

Output: chord


Input: Consider Input: hoist, crane, excavator, winch, windlass

Output: hoist


Input: Consider Input: disgusted, miserable, emotionalities, backward, down


Output: backward