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]: crane, winch, mallet, winch, flamingo
[EX A]: winch

[EX Q]: crew, board, deck, rudder, hull
[EX A]: board

[EX Q]: synergy, sustainability, hard, alignment, firm
[EX A]:
hard