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: poker 
Words: call, sail, deck, board, queen
sail

Category: boxing terminology 
Words: corner, fold, deck, knockout, level
fold

Category: type of sandwich 
Words: outing, bacon, blt, club, submarine

outing