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.

Ex Input:
bowl, plastic, glass, panel, lead

Ex Output:
bowl


Ex Input:
alright, detached, fine, acceptable, bright

Ex Output:
bright


Ex Input:
courage, brash, honest, wiener, frank

Ex Output:

wiener