TASK DEFINITION: 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 neither agree nor 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.
PROBLEM: Sentence 1: A grandmother and two of her grandchildren taking the dog for a walk in the woods. Sentence 2: Some people are walking a dog

SOLUTION: The dog is a chihuahua

PROBLEM: Sentence 1: Two young children riding a bus, one is holding a bottle and the other is holding a can. Sentence 2: Two kids are on a train holding different things.

SOLUTION: One of the children is drinking grape soda, the other is drinking dr. pepper.

PROBLEM: Sentence 1: A baseball is being thrown at a volleyball net. Sentence 2: There is a baseball flying towards a net.

SOLUTION:
A boy is throwing a baseball.