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.

Example Input: Sentence 1: A skateboarder doing a jump on train tracks. Sentence 2: A boy jumps his skateboard in front of an oncoming train.
Example Output: A skateboarder jumping.

Example Input: Sentence 1: Two people sit on a couch overlooking the view of a city. Sentence 2: An old couple enjoy the view.
Example Output: Two people sit.

Example Input: Sentence 1: A small boy holding a stick is walking through the dirt outside of a building. Sentence 2: There is a boy playing with a stick outdside
Example Output:
There is a boy outdoors walking