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 woman walking a bike down a busy sidewalk. Sentence 2: A person walking a bike down a busy sidewalk.

SOLUTION: A man walking a bike down a busy sidewalk.

PROBLEM: Sentence 1: A man is trying to catch a baseball. Sentence 2: The fielder is attempting to catch a pop fly

SOLUTION:
The bird strikes out