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.

[EX Q]: Sentence 1: A man with a name tag on is sitting in a chair. Sentence 2: A man has a name tag
[EX A]: A man is sleeping.

[EX Q]: Sentence 1: A person wearing a hat and baggy pants is skateboarding on cement. Sentence 2: A human rides a skateboard.
[EX A]: An old man falls off a skateboard.

[EX Q]: Sentence 1: A man is wearing an Alaska sweatshirt. Sentence 2: The man is wearing a sweatshirt.
[EX A]:
The man is not wearing a shirt.