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: file, prepare, document, space, folder

SOLUTION: prepare

PROBLEM: centimeter, yard, foot, milimeter, head

SOLUTION: head

PROBLEM: car, drive, bus, fly, beetle

SOLUTION:
beetle