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: hamburger, club, discothek, lettuce, dagwood

SOLUTION: discothek

PROBLEM: pick, fret, string, fingerpick, sad

SOLUTION: sad

PROBLEM: windlass, crane, duck, egret, neck

SOLUTION:
windlass