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: wave, spider, fly, flap, car

Output: spider


Input: Consider Input: fearful, content, substance, program, thing

Output: fearful


Input: Consider Input: deck, canvas, queen, apron, blocking


Output: queen