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: four young people have stopped to listen to a man play a saxophone. Sentence 2: A man is playing the saxophone.

SOLUTION: Four young people are listening to a man play the guitar.

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 small boy wearing a red shirt swinging a baseball bat Sentence 2: A boy is outdoors.

SOLUTION:
The boy is on Mars.