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: just, make the grade, well, unjust, fair

Output: make the grade


Input: Consider Input: rigged, common, firm, taut, rough


Output: common