TASK DEFINITION: In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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 group of dark-haired girls are walking together. Sentence 2: a group of friends walk

SOLUTION: a group of girls walks

PROBLEM: Sentence 1: Man getting haircut at barber shop. Sentence 2: A barber is cutting a man's hair with scissors.

SOLUTION: A person is receiving personal grooming attention.

PROBLEM: Sentence 1: A man is performing some music. Sentence 2: The man is playing a saxophone.

SOLUTION:
There is a musician performing.