Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Example Input: camp, fish, iguana, hike, kayak
Example Output: iguana

Example Input: canvas, deck, corner, apron, queen
Example Output: queen

Example Input: unprejudiced, balanced, just, fair, well
Example Output:
well