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: beside, close, steady, nearest, nearer

Ex Output:
steady


Ex Input:
Category: boats 
Words: check, stern, hull, galley, deck

Ex Output:
check


Ex Input:
Category: physical property 
Words: pasty, obese, salt, big boned, fat

Ex Output:

salt