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: unflappalbe, refreshing, funny, cool, confident

Output: refreshing


Input: Consider Input: sugars, fat, protein, skinny, iron

Output: skinny


Input: Consider Input: bun, frank, wiener, provision, fortitude


Output: fortitude