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: fawn, social, cub, kid, colt
Example Output: social

Example Input: hunting, goat, camp, trap, fish
Example Output: goat

Example Input: level, draw, deck, tko, punch
Example Output:
draw