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: space, file, answer calls, fax, support

SOLUTION: space

PROBLEM: crane, derrick, hoist, winch, parrot

SOLUTION:
hoist