Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Input: Consider Input: Category: emotional display 
Words: pester, fawn, suppressed, follow, woods

Output: woods


Input: Consider Input: Category: elements 
Words: let go, flame, inferno, fire, water

Output: let go


Input: Consider Input: Category: animals 
Words: geese, get down, duck, horse, dog


Output: get down