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.

Ex Input:
Category: corporate 
Words: synergy, combined, concerted, resistant, firm

Ex Output:
resistant


Ex Input:
Category: date status 
Words: belated, blue, early, detestings, current

Ex Output:
blue


Ex Input:
Category: computers 
Words: folder, keys, file, format, errands

Ex Output:

errands