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: equitable, just, fair, loyal, even
Example Output: even

Example Input: falsification, fib, invent, fudge, cupcake
Example Output: cupcake

Example Input: space, download, support, file, format
Example Output:
support