instruction:
In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair contradict each other. Generated sentences must be short, with less than 15 words. New information can be introduced. Avoid using pronouns to confuse the subject of the sentence.
question:
Sentence 1: Some people are standing outside at a sidewalk book sale. Sentence 2: People browse a sidewalk book sale.
answer:
A bookstore is on fire.


question:
Sentence 1: Two men in black clothes inspect the motor of a racing car while the top of the car is lifted. Sentence 2: Two males are standing near a race car.
answer:
Two men are going 200 mph inside a race car.


question:
Sentence 1: Children sit together in a circle. Sentence 2: Children sitting.
answer:

Children scampering in all directions.