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: variety, medium, endure, size, fair

SOLUTION: endure

PROBLEM: lifeline, knockout, deck, punch, tko

SOLUTION: lifeline

PROBLEM: fib, fudge, falsehood, invent, cake

SOLUTION:
cake