In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair 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.

Sentence 1: Man carrying a stack of newspapers on his head turns around to look at camera. Sentence 2: A man is walking.
A blind woman is petting her dog.

Sentence 1: A small black dog is running along side a bigger tri-colored dog that is carrying a rope toy in its mouth. Sentence 2: A small dog running next to a colorful dog carrying an object in it's mouth.
Two dogs are riding in a car

Sentence 1: The bike rider rides in a wooded area. Sentence 2: The biker is riding.

They are playing chess.