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: kitchenware 
Words: glass, colander, dish, plate, panel
Example Output: panel

Example Input: Category: moral characteristic 
Words: concise, frank, matter of fact, pork, blunt
Example Output: pork

Example Input: Category: food 
Words: frank, matter of fact, wiener, bun, entree
Example Output:
matter of fact