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: secretary duty 
Words: support, type, file, software, answer

Output: software


Input: Consider Input: Category: aesthetic characteristic 
Words: cool, trustworthy, milky, fair, well

Output: trustworthy


Input: Consider Input: Category: food 
Words: wiener, precise, frank, provision, grub


Output: precise