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: fire, cool, water, ban, ice

Output: ban


Input: Consider Input: even, light, dishonest, variety, fair

Output: dishonest


Input: Consider Input: errands, file, download, text, folder


Output: errands