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.

Example Input: Sentence 1: A girl wearing a pink and black shirt and jeans fixes her hair before walking up the stairs. Sentence 2: A girl is wearing a shirt.
Example Output: A girl is bald.

Example Input: Sentence 1: Two guys performing rock concert, one has short blond-hair who is singing, and the second has long blond-hair and is jamming out on his guitar. Sentence 2: the people are performing
Example Output: the children sleep in the living room

Example Input: Sentence 1: A man with a orange hat and a brown jacket has a cigarette in his mouth. Sentence 2: The man is smoking.
Example Output:
The man is smoking a pipe.