instruction:
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.
question:
Category: boats 
Words: head, hull, knockout, deck, dock
answer:
knockout


question:
Category: poker 
Words: fold, suits, deck, sail, hearts
answer:
sail


question:
Category: animal 
Words: glide, ant, leap, dive, fly
answer:

glide