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: Male musician playing an accordion wearing a leather jacket and hat on a boardwalk or pier. Sentence 2: A man in a leather jacket is playing an instrument on the pier.
Example Output: The man flying an airplane.

Example Input: Sentence 1: Compact cars line the streets and a series of tents is set up along one sidewalk. Sentence 2: There are tents next to the sidewalk.
Example Output: There are only buses along the street.

Example Input: Sentence 1: Girls team members gather in a group raising their hands. Sentence 2: Some people raise their hands.
Example Output:
Some birds are flying across the sky.