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: computers 
Words: hardware, download, file, support, program

Ex Output:
support


Ex Input:
Category: employment activity 
Words: replace, ice, fire, ban, hire

Ex Output:
ice


Ex Input:
Category: weather 
Words: raining, deal, texture, fair, warm

Ex Output:

texture