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: A man gets ready to throw a stick for his waiting dog. Sentence 2: The man is outdoors with his dog.
Example Output: A man is playing with a cat.

Example Input: Sentence 1: A pair of young boys dressed in shorts and shirts are playing table tennis. Sentence 2: Some kids playing.
Example Output: A dong pees on the rung.

Example Input: Sentence 1: A young toddler in an orange t-shirt is riding in a stroller. Sentence 2: A todder is riding in the stroller.
Example Output:
The man is riding in a stroller.