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: emotional status 
Words: fine, wispy, alert, calm, relaxed

Ex Output:
wispy


Ex Input:
Category: military rank 
Words: general, fighter, normal, major, lieutenant

Ex Output:
normal


Ex Input:
Category: aesthetic characteristic 
Words: variety, endure, level, fair, milky

Ex Output:

endure