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: weather 
Words: cold, 70, fair, well, luke

Ex Output:
well


Ex Input:
Category: military rank 
Words: sargent, ordinary, captain, colonel, general

Ex Output:
ordinary


Ex Input:
Category: aesthetic characteristic 
Words: fair, texture, light, flaxen, tangle

Ex Output:

tangle