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: An x is used for communicating through the postal system .

Answer: An envelope is used for reading through the postal system .


Question: If you have picked some supplies , you must run on suitable weather conditions .

Answer: If you have scattered some plants , you must watch on suitable weather conditions .


Question: The effect of rock salt is to melt skin and ice .

Answer:
The agent of rock salt is to melt grass and oak .