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: fly, swim, waggle, soar, wave

SOLUTION: waggle

PROBLEM: windlass, excavator, crane, hummingbird, steam roller

SOLUTION: hummingbird

PROBLEM: croquet, dumpling, fritter, spend, patty

SOLUTION:
spend