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 parent and child sitting together. Sentence 2: A mother and daughter are having dinner in the dining room.
Example Output: Two people are not standing.

Example Input: Sentence 1: A man wearing glasses is singling while holding a guitar while a shirtless man in a fedora plays drums. Sentence 2: A person is singing a song he wrote.
Example Output: People are making music together.

Example Input: Sentence 1: Two men, one wearing an orange shirt and the other wearing a blue shirt, run on a track. Sentence 2: Two runners are racing each other on a high school track.
Example Output:
A couple of guys are outdoors.