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: excited, content, item, disappointed, jealous
Example Output: item

Example Input: Category: secretary duty 
Words: file, software, schedule, support, order office supplies
Example Output: software

Example Input: Category: baby animals 
Words: hatchling, bambi, love, fawn, woods
Example Output:
love