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: bike, flap, fly, walk, wave

SOLUTION: walk

PROBLEM: running., close, bordering, nearer, touching

SOLUTION: running.

PROBLEM: picnic, doorstep, club, roll, french toast

SOLUTION:
picnic