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: leverage, solid, firm, amalgamated, concerted

Output: solid


Input: Consider Input: acrylic, wood, plate, woodwork, glass


Output: plate