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: Nine people riding their horses. Sentence 2: the people are riding their horses on a trail.
Example Output: horses are being ridden

Example Input: Sentence 1: Four people laughing and sitting on a couch. Sentence 2: Four people are watching television
Example Output: People are playing video games

Example Input: Sentence 1: People walking across a crosswalk. Sentence 2: People are crossing the street.
Example Output:
People are walking on the sidewalk