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: police punishment 
Words: suspension, exquisite, prime, fine, flyaway

Ex Output:
exquisite


Ex Input:
Category: computers 
Words: hardware, sort mail, download, program, file

Ex Output:
sort mail


Ex Input:
Category: military rank 
Words: sargent, universal, general, admiral, private

Ex Output:

universal