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.

Example Input: Category: boats 
Words: crew, deck, rudder, suits, hull
Example Output: suits

Example Input: Category: type of sandwich 
Words: submarine, group, club, roll, grilled cheese
Example Output: group

Example Input: Category: consumer product 
Words: food, specialty, panicked, content, merchandise
Example Output:
panicked