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: submarine, burger, bar, lettuce, club
answer:
bar


question:
Category: weather 
Words: mild, warm, fine, fair, deal
answer:
fine


question:
Category: widespread 
Words: ordinary, fighter, general, average, plain
answer:

fighter