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: A man is rowing a canoe with several people on board. Sentence 2: A boat full of people is propelled by a man.
Example Output: A man captains a motorboat alone.

Example Input: Sentence 1: A man in a striped shirt and jeans, and a woman in a white top dancing with each other. Sentence 2: The man and woman are dancing.
Example Output: The man and woman are sitting down watching tv.

Example Input: Sentence 1: A black dog runs across the water at a beach while another follows. Sentence 2: There are two dogs.
Example Output:
Both dogs are dry.