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: fire, blaze, water, flame, recruit

Output: recruit


Input: Consider Input: condominium, duplex, studio, flat, level

Output: level


Input: Consider Input: cow, climbing, hike, fish, canoe


Output: cow