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: geographical property 
Words: flat, horizontal, smooshed, elevation, house

Output: house


Input: Consider Input: Category: body part 
Words: elbow, foot, knee, inch, hand

Output: inch


Input: Consider Input: Category: moral characteristic 
Words: unprejudiced, ok, just, warm, fair


Output: warm