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: fat, sugar, ugly, chunky, angular momentum

Output: sugar


Input: Consider Input: ugly, absorption, vitamin c, fat, thin

Output: vitamin c


Input: Consider Input: content, service, jealous, excited, fearful


Output: service