TASK DEFINITION: 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.
PROBLEM: Sentence 1: A man in a brown shirt is cooking in a room with blue paint. Sentence 2: The man is making food.

SOLUTION: The man is in a yellow room.

PROBLEM: Sentence 1: An old fashion pub, Employees are dressed in old fashion wear and alcohol comes in jugs. Sentence 2: There are people in a pub.

SOLUTION: There are people eating worms.

PROBLEM: Sentence 1: A blond-haired boy in his pajamas sits on a red chair next to a black guitar and looks at a book. Sentence 2: The blonde boy sat next to the guitar and book.

SOLUTION:
The boy was sitting on a blue chair.