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: hunting, fish, kayak, goat, raft

A: goat
****
Q: hot, optimist, cool, calm, relaxed

A: hot
****
Q: hatchling, buck, woods, fawn, lust

A:
lust
****