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: forward, opposite of up, unhappy, downward, down

SOLUTION: unhappy

PROBLEM: falsification, fib, invent, fudge, cupcake

SOLUTION: cupcake

PROBLEM: glass, translucent fabric, spyhole, plastic, bowl

SOLUTION:
bowl