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]: pick, fret, string, fingerpick, sad
[A]: sad


[Q]: pastry, dunker, fritter, blow, cake
[A]: blow


[Q]: lifeline, blocking, rudder, stern, deck
[A]:
blocking