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: weather 
Words: raining, sunny, fair, ghostly, windy

Output: ghostly


Input: Consider Input: Category: consumer product 
Words: shop, tools, happy, service, content

Output: happy


Input: Consider Input: Category: moral characteristic 
Words: harsh, precise, frank, concise, goodies


Output: goodies