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 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 white dog is chasing after a small dog at the beach Sentence 2: There are animals at the beach.

SOLUTION: A white cat is chasing after a small dog.

PROBLEM: Sentence 1: A woman walking a bike down a busy sidewalk. Sentence 2: A person walking a bike down a busy sidewalk.

SOLUTION: A man walking a bike down a busy sidewalk.

PROBLEM: Sentence 1: A woman standing outside leaning against a shovel which is in a bucket as she stairs at a man with a green cap. Sentence 2: The woman is leaning against something.

SOLUTION:
A man is wearing a black cap