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: ugly, absorption, vitamin c, fat, thin

Output: vitamin c


Input: Consider Input: goodies, fortitude, frank, pork, weenie

Output: fortitude


Input: Consider Input: timely, belated, tide, current, delayed


Output: tide