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.

Ex Input:
Sentence 1: A man kneeling on a roof touching a piece of plywood wearing sunglasses. Sentence 2: A man kneeling on a roof is fixing a spot on the roof with a piece of plywood.

Ex Output:
A man wearing sunglasses is kneeling on the top of a house.

Ex Input:
Sentence 1: A man blays with a black dog and a yellow ball. Sentence 2: The dog is a poodle.

Ex Output:
A man plays with a black dog.

Ex Input:
Sentence 1: A black and brown dog is running between two cement barriers with snow. Sentence 2: A dog is running for the ball.

Ex Output:
A dog is running.