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 guy looking at posters displayed outside of a building. Sentence 2: A guy looking at new movie posters.
Example Output: A guy looking at posters.

Example Input: Sentence 1: Men yell into a microphone. Sentence 2: A person is shouting at the audience.
Example Output: A person is shouting through a microphone.

Example Input: Sentence 1: Two men are using phone-booths that are located shortly outside of the downtown area of a city, by some trees. Sentence 2: Two men are making calls from phone booths that sit on a sidewalk by some trees.
Example Output:
Some people are making calls from a phone booth.