Given a sentence, generate a new sentence by performing small changes on the sentence. Here, make sure that the changes are semantically related and syntactically similar to the input. And the generated sentence should have high commonsense plausibility, that is to have reasonable probability of it being true.
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Question: You are likely to find a football stash in an envelope .

Answer: You are sorry to find a th parcel in an envelope .


Question: If you fancy to arrive in a restaurant then you should fancy a date .

Answer: If you want to eat in a restaurant then you should bring a date.


Question: The effect of staying healthy is a longer infection .

Answer:
The effect of staying healthy is a longer repair .