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: emotional status 
Words: excited, content, item, disappointed, jealous
Example Output: item

Example Input: Category: location (proximity) 
Words: on top of, touching, finished for the day, close, right there
Example Output: finished for the day

Example Input: Category: social gathering 
Words: place, bar, doorstep, club, outing
Example Output:
doorstep