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: sunny, alright, deal, fair, tangle

Ex Output:
alright


Ex Input:
Category: window material 
Words: plastic, woodwork, glass, bowl, spyhole

Ex Output:
bowl


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

Ex Output:

tangle