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.
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Question: Sentence 1: Two lines of colorful cars racing on a racetrack. Sentence 2: Some brightly colored cars are going extremely fast on a track.

Answer: Some cars are racing


Question: Sentence 1: A man is enjoying a bottled beverage as he walks down the street. Sentence 2: A man was drinking a beer walking down the street.

Answer: The man is walking down the street.


Question: Sentence 1: Female tennis player in green shorts and red shirt serving on a grass court at 126 kilometers per hour. Sentence 2: Tennis player is serving on a grass court at 126 kilometers per hour to defeat opponent.

Answer:
Tennis ground contain two teams in green and red color dress.