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: spatula, panel, plastic, glass, translucent fabric
Example Output: spatula

Example Input: fudge, brownie, unlicensed, cake, pudding
Example Output: unlicensed

Example Input: grub, vittles, concise, meat, frank
Example Output:
concise