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: crying, concerned, pick, emotionalities, fret

Output: pick


Input: Consider Input: fish, bat, mice, dog, hiking

Output: hiking


Input: Consider Input: train, drive, spider, fly, flutter


Output: spider