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.

Input: Consider Input: Category: animal 
Words: goat, cat, fish, hamster, hunting

Output: hunting


Input: Consider Input: Category: animals 
Words: duck, jog, cat, pig, mallet

Output: jog


Input: Consider Input: Category: food 
Words: weenie, goodies, frank, meat, fortitude


Output: fortitude