TASK DEFINITION: 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.
PROBLEM: Sentence 1: A balding man is playing the drums, as another young man holding a guitar plugs in the amp. Sentence 2: At the Grammys a Kayne West and Beck are preforming the same song.

SOLUTION: Two men are preforming music.

PROBLEM: Sentence 1: Girl in plaid shirt wears a mask over her face as she walks in public. Sentence 2: A puppy is sleeping on the floor.

SOLUTION: A girl wears a mask over her face.

PROBLEM: Sentence 1: The black dog is by a soccer ball and the brown dog is running. Sentence 2: Two dogs are lying  in the grass.

SOLUTION:
There are two dogs outside.