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: merchandise, excited, content, specialty, food
Example Output: excited

Example Input: miserable, emotional supports, down, kind, south
Example Output: south

Example Input: woo, flatter, fawn, cub, love
Example Output:
cub