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.

Input: Consider Input: vittles, integrity, cheese, pork, frank

Output: integrity


Input: Consider Input: pay, praise, fire, inferno, let go

Output: inferno


Input: Consider Input: bird, fly, flutter, run, cockroach


Output: flutter