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: Man in black gloves pretends to punch a man dressed in red holding a drink. Sentence 2: Two male actors, one with black gloves and the other dressed in red holding a drink peforming a fight scene on stage.

SOLUTION: Two men standing on tiled floor.

PROBLEM: Sentence 1: A large white dog growling at a large black dog. Sentence 2: A white dog is retaliating at a black dog's growl.

SOLUTION: Two dogs are interacting with each other.

PROBLEM: Sentence 1: Young male in a white karate outfit with a blue belt wrapped around his waist performs karate moves in front of the judges of the competition. Sentence 2: A young man is impressing the judges at a competition.

SOLUTION:
A young man is in a karate competition.