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 vendor sits in the middle of a display of glasses at a street market in an Asian country. Sentence 2: A vendor joyously sits
Example Output: A vendor sits

Example Input: Sentence 1: A father and his son bonding. Sentence 2: A father and his son are playing catch.
Example Output: A man has a son.

Example Input: Sentence 1: A skateboarder in a light green shirt. Sentence 2: They are skating in the park.
Example Output:
The person has a skateboard.