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: bird 
Words: dump truck, tackle, crane, hoist, davit

Ex Output:
dump truck


Ex Input:
Category: animal 
Words: fish, bat, sea turtle, trap, goat

Ex Output:
trap


Ex Input:
Category: food 
Words: honesty, meat, hot dog, sausage, frank

Ex Output:

honesty