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: flamingo, crane, davit, pelican, derrick

SOLUTION: davit

PROBLEM: cookies, replace, fudge, banned, lie

SOLUTION: cookies

PROBLEM: combustion, hire, fire, let go, recruit

SOLUTION:
combustion