In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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.

Sentence 1: A man in a baseball cap is playing a shooting game in an arcade with a friend. Sentence 2: A man is playing an arcade game the mall.
A man is playing an arcade game.

Sentence 1: A boy rides down a slide into a small backyard pool. Sentence 2: A boy goes down a slide on his stomach.
The men are changing the stone.

Sentence 1: A child lies on the ground near a ball in front of a parked car the leads a line of parked cars on the shoulder of a road. Sentence 2: The child was hit by a car at a parking lot.
A child is on the ground.