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, errands, type, folder, order office supplies

SOLUTION: folder

PROBLEM: duck, cat, stoop, swan, goose

SOLUTION: stoop

PROBLEM: flamingo, crane, excavator, egret, tackle

SOLUTION:
excavator