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.

Example Input: Sentence 1: A classic propeller-driven airplane flies in the distance as two men play with a remote-controlled toy airplane in a field in the foreground. Sentence 2: Two men are playing with a toy airplane.
Example Output: A woman and Man are dancing in the store.

Example Input: Sentence 1: A small child pushes a stroller down the street. Sentence 2: A small child holds onto a stroller.
Example Output: A small child tips over a stroller.

Example Input: Sentence 1: A man in jeans and a blue long-sleeved shirt is on his phone while leaning on the edge of a building. Sentence 2: A man is talking on his phone.
Example Output:
A man is jumping from the top of the building.