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: secretary duty 
Words: support, hardware, prepare, file, make coffee
Example Output: hardware

Example Input: Category: poker 
Words: fold, queen, deck, galley, call
Example Output: galley

Example Input: Category: fried food 
Words: croquet, fritter, goodbye, dumpling, pastry
Example Output:
goodbye