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 boy, wearing a gray shirt and black pants, is bowling with a black bowling ball with only two pins left to knock down. Sentence 2: A boy is bowling with his friends.
Example Output: A boy bowls with a black bowling ball

Example Input: Sentence 1: A skateboarder does a stunt in the city. Sentence 2: A skateboarder does a trick for the crowd.
Example Output: A person is skateboarding in the city.

Example Input: Sentence 1: Cooks in a pizza parlor check the oven. Sentence 2: Pizza chefs find an oven to be too cold.
Example Output:
Pizza chefs check the oven.