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: date status 
Words: data sets, tide, late, detestings, current
Example Output: tide

Example Input: Category: secretary duty 
Words: errands, fax, file, type, ram
Example Output: ram

Example Input: Category: weather 
Words: fair, clime, mild, warm, well
Example Output:
well