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: There are many people sitting or standing on sand, and there is a tractor. Sentence 2: There are many people sitting and standing on sand.
Example Output: There are many people sleeping and cooking on sand.

Example Input: Sentence 1: That person is in the water with a World festival sign. Sentence 2: A person is advertising the World Festival.
Example Output: The person is sleeping in bed.

Example Input: Sentence 1: A black dachshund sniffs another dog wearing a striped shirt. Sentence 2: Dogs are smelling eachother.
Example Output:
Monkeys are sniffing each other.