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: crane, pelican, egret, hummingbird, upraise

A: upraise
****
Q: vodka, spider, gin, blackjack, go fish

A: vodka
****
Q: confident, tropical, cool, mild, warm

A:
confident
****