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: Racing Greyhound dog wearing number 8. Sentence 2: The greyhound wearing number 8 is going to win.
Example Output: The dog is number 8.

Example Input: Sentence 1: Family hiking in the woods with two children. Sentence 2: The children are collecting acorns.
Example Output: A family with two children hike in the woods.

Example Input: Sentence 1: A woman is playing a piano with a landscape painted on it beside a man who is standing and playing a wooden recorder. Sentence 2: A woman is playing a piano and singing.
Example Output:
Two people are performing music.