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: type of sandwich 
Words: hoagie, burger, hamburger, club, discothek
answer:
discothek


question:
Category: emotional status 
Words: descending, disgusted, down, miserable, emotional
answer:
descending


question:
Category: boats 
Words: rudder, stern, glove, gunwale, deck
answer:

glove