instruction:
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.
question:
Sentence 1: A young thin man with a backpack wearing striped t-shirt and glasses is walking on the street and looking at something on his right. Sentence 2: A young black man with a backpack walks down the street at night.
answer:
A young man with a backpack walks down the street.


question:
Sentence 1: A baseball player in a white uniform takes a swing at a baseball while a catcher in a black and gold uniform crouches behind him. Sentence 2: The hitter has just hit a homerun in this picture, and is watching the ball fly away.
answer:
There are two baseball players in this picture, competing against each other.


question:
Sentence 1: A young girl volleyball player "bumping" the volleyball. Sentence 2: A young girl trying not to hit the net or ground.
answer:

A young girl is pushing a ball in the air.