TASK DEFINITION: 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.
PROBLEM: miserable, ground, up, opposite of up, down

SOLUTION: miserable

PROBLEM: normal, commander, sargent, private, general

SOLUTION: normal

PROBLEM: swim, wrestle, fish, canyoning, horse

SOLUTION:
horse