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 baby is pulling the cat by the tail. Sentence 2: a baby is holding the tail of a cat.

SOLUTION: the baby is playing with the cat.

PROBLEM: Sentence 1: An asian table tennis player is eagerly watching and waiting for his opponent serves the ball. Sentence 2: Two men compete in a ping-pong match.

SOLUTION: A person playing ping pong anticipates the other person's next move.

PROBLEM: Sentence 1: The tennis player holds his racket up anticipating the ball. Sentence 2: A tennis player holds up his racket anticipating the final serve of his opponent

SOLUTION:
The tennis player holds up a racket