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.

Q: fret, sad, amp, fingerpick, string

A: sad
****
Q: variety, endure, level, fair, milky

A: endure
****
Q: deck, rudder, cards, dock, lifeline

A:
cards
****