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: boats 
Words: chips, crew, bow, deck, bridge

Output: chips


Input: Consider Input: Category: body part 
Words: inch, head, foot, ear, finger

Output: inch


Input: Consider Input: Category: computers 
Words: make coffee, software, keys, file, motherboard


Output: make coffee