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: location (proximity) 
Words: neighboring, right there, shut down, close, bordering
Example Output: shut down

Example Input: Category: kitchenware 
Words: spoon, glass, bowl, lead, cup
Example Output: lead

Example Input: Category: animal 
Words: cat, canoe, fish, goat, horse
Example Output:
canoe