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: deck, galley, check, joker, queen
galley

Category: type of sandwich 
Words: roll, hoagie, bacon, club, community
community

Category: bird 
Words: tackle, davit, heron, crane, flamingo

davit