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: heat, hire, burn, air, fire

Output: hire


Input: Consider Input: crane, pelican, egret, hummingbird, upraise

Output: upraise


Input: Consider Input: fly, swim, car, beetle, grasshopper


Output: car