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: A skateboarder doing a jump on train tracks. Sentence 2: A boy jumps his skateboard in front of an oncoming train.

SOLUTION: A skateboarder jumping.

PROBLEM: Sentence 1: An older man and a young child in a costume interact with one another. Sentence 2: The grandparent is speaking to their grandchild.

SOLUTION: An old person is talking to a child.

PROBLEM: Sentence 1: A baseball player in a blue uniform has just released the baseball on the sidelines. Sentence 2: A fat baseball player in a blue uniform has just released the baseball on the sidelines.

SOLUTION:
A baseball player in a uniform has just released the baseball on the sidelines.