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: blue, current, drink, water, prompt

Output: prompt


Input: Consider Input: deal, 70, equitable, fair, raining

Output: equitable


Input: Consider Input: attractive, detailed, fine, hearing, level


Output: hearing