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 child runs down an elevated walkway in a city. Sentence 2: A child runs in New York City.
Example Output: A child runs in a city.

Example Input: Sentence 1: A crowded marketplace is filled with people, including women with their heads covered with veils. Sentence 2: An islamist marketplace is busy.
Example Output: The market is very busy.

Example Input: Sentence 1: A batter prepares to swing at a ball. Sentence 2: A person is playing an important playoff game.
Example Output:
A player is playing a sport.