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: computers 
Words: download, file, order office supplies, document, motherboard

Output: order office supplies


Input: Consider Input: Category: animal 
Words: shark, dolphin, fish, hunting, cat

Output: hunting


Input: Consider Input: Category: construction 
Words: concrete pourer, davit, neck, tackle, crane


Output: neck