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: physical activity 
Words: run, jump, autumn, fall, swim
answer:
autumn


question:
Category: moral characteristic 
Words: light, unprejudiced, honorable, fair, unjust
answer:
light


question:
Category: animal 
Words: car, bird, bats, fly, cockroach
answer:

car