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

Ex Output:
team


Ex Input:
Category: mode of transportation 
Words: swim, bike, soar, fly, jump

Ex Output:
jump


Ex Input:
Category: animal 
Words: jog, swim, waggle, bird, fly

Ex Output:

jog