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.

Example Input: grasshopper, fly, walk, bus, eagle
Example Output: bus

Example Input: dishonest, fair, clime, balanced, alright
Example Output: clime

Example Input: up to the moment, current, tide, blue, water
Example Output:
up to the moment