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 young girl wears a butterfly costume. Sentence 2: A young girl is wearing pajamas.

SOLUTION: A child is wearing a costume.

PROBLEM: Sentence 1: Four dogs watch an unseen object, two of them leaping in the air. Sentence 2: Four dogs are sleeping.

SOLUTION: Two dogs leap in the air.

PROBLEM: Sentence 1: At a martial arts demonstration, a few men in white uniforms stand atop one another, doing stunts. Sentence 2: A few men in black uniforms did stunts.

SOLUTION:
A couple of men are at doing a demonstration.