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: accomodation 
Words: elevation, level, round, flat, townhome

Ex Output:
elevation


Ex Input:
Category: type of sandwich 
Words: open-faced, team, roll, doorstep, club

Ex Output:
team


Ex Input:
Category: food 
Words: wiener, courage, cheese, weenie, frank

Ex Output:

courage