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: swallow, heron, crane, flamingo, tackle

SOLUTION: tackle

PROBLEM: blow, waste away, fritter, dally, croquet

SOLUTION: croquet

PROBLEM: honorable, tangle, fair, fine, unjust

SOLUTION:
tangle