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.

Example Input: Category: emotional status 
Words: content, hearing, fine, happy, alert
Example Output: hearing

Example Input: Category: weather 
Words: mild, warm, fine, fair, deal
Example Output: fine

Example Input: Category: food 
Words: sausage, honesty, entree, grub, frank
Example Output:
honesty