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: vittles, integrity, cheese, pork, frank
Example Output: integrity

Example Input: colt, identity, fawn, pester, suppressed
Example Output:
colt