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: animal 
Words: bird, fish, fly, drive, eagle
drive

Category: food 
Words: bun, frank, wiener, provision, fortitude

fortitude