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: concerned, strap lock, anxious, bored, fret

Output: strap lock


Input: Consider Input: entree, honest, loyalty, frank, fortitude

Output: entree


Input: Consider Input: colt, culture, kid, calf, fawn


Output: culture