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: Two young girls jumping and having fun on a trampoline in a backyard setting. Sentence 2: Two children are playing on a trampoline.
Example Output: Three children are jumping on a trampoline.

Example Input: Sentence 1: A black dog with a stuffed animal in its mouth is running and jumping through a snowy field. Sentence 2: There is a dog in a field
Example Output: The dog has nothing in its mouth

Example Input: Sentence 1: Three girls are dancing in a large room. Sentence 2: There are people dancing.
Example Output:
Three girls are playing hockey in a large room.