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 Q]: Sentence 1: A white dog with a black collar runs in the snow. Sentence 2: A dog is playing in a snow bank.
[EX A]: There is a dog running outside.

[EX Q]: Sentence 1: A young man sits with his elbows on his legs while he reads a book. Sentence 2: A teenager is flipping through a book in the library.
[EX A]: A book reader is engrossed in his book.

[EX Q]: Sentence 1: A dark-skinned man handing someone his phone. Sentence 2: The man is being nice.
[EX A]:
The man has dark skin.