instruction:
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.
question:
Sentence 1: a man gets ready to hit the tennis ball. Sentence 2: The man is getting ready to serve a volleyball.
answer:
A man is playing tennis.


question:
Sentence 1: The tennis player has her hair tied back Sentence 2: The tennis play has the hair on her bald head tied back.
answer:
The tennis player is female.


question:
Sentence 1: People gathering for a good cause Sentence 2: There is a riot on the front lawn.
answer:

There is a crowd gathered.