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: deck, tko, rudder, level, corner

SOLUTION: rudder

PROBLEM: fair, endure, mild, color, tangle

SOLUTION: color

PROBLEM: thing, activity, disappointed, content, substance

SOLUTION:
disappointed