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.

Q: deal, fair, endure, windy, ghostly

A: ghostly
****
Q: angular momentum, fat, calcium, brittleness, ugly

A: calcium
****
Q: canasta, gin, poker, brandy, spades

A:
brandy
****