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]: neck, swift, egret, tackle, crane
[EX A]: tackle

[EX Q]: blocking, fold, deck, check, board
[EX A]: blocking

[EX Q]: dump truck, derrick, derrick, crane, digger
[EX A]:
derrick