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: up to the moment, current, detests, tide, history

Output: tide

Input: Consider Input: slow, shut, close, beside, out of service

Output: beside

Input: Consider Input: melancholy, opposite of up, down, shameful, loveful
Output: opposite of up