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: Two girls sit back to back. Sentence 2: Two girls are posing for a picture.
Example Output: two girls are sitting together.

Example Input: Sentence 1: A man is enjoying a bottled beverage as he walks down the street. Sentence 2: A man was drinking a beer walking down the street.
Example Output: The man is walking down the street.

Example Input: Sentence 1: A food cart is operated near an outdoor seating area. Sentence 2: A food cart is selling hot dogs in the park.
Example Output:
A food cart being operated.