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: A band is playing at an outdoor music festival. Sentence 2: There are musicians.

SOLUTION: The band plays on the stage inside the church.

PROBLEM: Sentence 1: A man photographing a large concrete wall. Sentence 2: A human photographing

SOLUTION:
Nobody is photographing.