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 person sitting on a lift over water with another person handing a bag to them. Sentence 2: A person sitting with their friends.
Example Output: A person sitting.

Example Input: Sentence 1: A woman tosses a bag of trash into a dumpster. Sentence 2: The hairdresser threw away all the freshly cut hair.
Example Output: People are moving forward on the track.

Example Input: Sentence 1: A couple walks down a pedestrian street at night. Sentence 2: A man and a woman are taking a stroll.
Example Output:
People are walking at night.