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: Two children, one wearing purple, the other black, ride a single bike on the pavement. Sentence 2: Two children ride the same bike.
Example Output: Two adults ride a double seater bike.

Example Input: Sentence 1: The thin, older man wearing an orange-striped shirt and gray pants carries his tools on a vintage gray bicycle and rests for a moment by the corrugated building. Sentence 2: the skinny old guy with tooks is taking a break
Example Output: A man is walking on stilts.

Example Input: Sentence 1: Two mature hikers take a break and admire the sunset over the lake. Sentence 2: There are people watching the sun set
Example Output:
There are people watching the sun rise