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: data sets, water, timely, current, late

Output: water

Input: Consider Input: hunt, fish, stingray, dolphin, bat

Output: hunt

Input: Consider Input: fair, pale, windy, flaxen, cool
Output: windy