In this task, you're given a pair of sentences, sentence 1 and sentence 2, that contradict each other. Your job is to alter sentence 2 so that the pair agree with 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.

Example Input: Sentence 1: Dark-haired man singing into a microphone and playing a guitar outside. Sentence 2: A man is juggling knives on stage.
Example Output: A man is performing.

Example Input: Sentence 1: Four dogs watch an unseen object, two of them leaping in the air. Sentence 2: Four dogs are sleeping.
Example Output: Two dogs leap in the air.

Example Input: Sentence 1: Three police officers 2 male 1 female standing around a girl holding something in her hands. Sentence 2: Three girls play musical instruments.
Example Output:
Three killers with a badge accost a girl.