Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Category: weather 
Words: cold, 70, fair, well, luke
well

Category: poker 
Words: deck, galley, check, joker, queen
galley

Category: bird 
Words: tackle, egret, dump truck, ostrich, crane

dump truck