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.

Ex Input:
danish, fried, lollygag, pastry, fritter

Ex Output:
lollygag

Ex Input:
happy, substance, shop, tools, content

Ex Output:
happy

Ex Input:
fair, luke, texture, sunny, endure

Ex Output:
texture