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: People look upon a monument where a speed is being given. Sentence 2: People at a national monument
Example Output: The woman is taking a picture.

Example Input: Sentence 1: A person is falling off their surfboard. Sentence 2: A person falls from their surfboard in a competition.
Example Output: A person falls.

Example Input: Sentence 1: people talking outside of a building. Sentence 2: A crowd is waiting for the store to open.
Example Output:
Some people are having a conversation.