TASK DEFINITION: In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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: Cyclists are cycling through laps. Sentence 2: Olympic hopefuls train for their next competition.

SOLUTION: People ride bikes outside.

PROBLEM: Sentence 1: A woman in a white jacket talks to a man in a gray jacket. Sentence 2: A woman talks to a man about her problems.

SOLUTION: A woman talks to a man.

PROBLEM: Sentence 1: A black dog leaps from the bank into a body of water, with a field of dry grass in the background. Sentence 2: A dog is going after a ball his handler threw into the water.

SOLUTION:
A dog jumps into the water by a field.