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: location (proximity) 
Words: on top of, touching, finished for the day, close, right there

Ex Output:
finished for the day


Ex Input:
Category: guitar part 
Words: truss rod, fret, neck, bored, strap lock

Ex Output:
bored


Ex Input:
Category: computers 
Words: firewall, software, schedule appointments, text, file

Ex Output:

schedule appointments