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 black dog runs through the dry grass. Sentence 2: The animal is indoors.

SOLUTION: The animal is running.

PROBLEM: Sentence 1: Two dogs play together and another runs after in a field. Sentence 2: The dogs are chasing a ball in the field.

SOLUTION: Two dogs are running in a field.

PROBLEM: Sentence 1: A person rides a motorbike in a motorcrossing event. Sentence 2: A person is on a blue motorbike at an event

SOLUTION:
A person is on a motorbike at an event