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]: shareholders, alignment, firm, sustainability, solid
[EX A]: solid

[EX Q]: crane, davit, swift, upraise, hoist
[EX A]: swift

[EX Q]: delayed, current, signal, history, detestings
[EX A]:
signal