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.

[EX Q]: duck, cat, stoop, swan, goose
[EX A]: stoop

[EX Q]: iguana, mice, climbing, fish, hamster
[EX A]: climbing

[EX Q]: concerned, chord, fret, emotional supports, frustrated
[EX A]:
chord