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: Interracial couple looks at each other wearing biking helmets Sentence 2: The interracial couple check out their new biking helmets they bought.

SOLUTION: A couple of humans look at each other.

PROBLEM: Sentence 1: A woman and a young boy are standing at the back of a red train car. Sentence 2: The mom and son are taking the train cross country.

SOLUTION: The woman and boy are standing at the back of the car.

PROBLEM: Sentence 1: A father standing on the side of a pond fishing as his son begins to wander off with the fishing net. Sentence 2: A father standing on the side of a pond fishing for trout.

SOLUTION:
A man is standing on the side of a pond.