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 man with a red jacket is shielding himself from the sun trying to read a piece of paper. Sentence 2: A man is trying to read the newspaper.
Example Output: A man outside.

Example Input: Sentence 1: A white dog walking beside a bicycler. Sentence 2: A puppy is running
Example Output: A dog walking beside a person on a bike.

Example Input: Sentence 1: A person hikes down a snowy mountain. Sentence 2: The person is on vacation.
Example Output:
The person is hiking.