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: date status 
Words: postponed, timely, early, current, jetstream

Ex Output:
jetstream


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

Ex Output:
blue


Ex Input:
Category: personal characteristic 
Words: cool, persistent, assured, ethical, tropical

Ex Output:

tropical