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.

Ex Input:
A c may have a larg or narrow casing .

Ex Output:
A T may have a wide or delicate casing .


Ex Input:
The effect of walking around a pavement is getting sore muscles .

Ex Output:
The effect of walking around a course is getting sore muscles .


Ex Input:
The world is covered with water.

Ex Output:

The world is threatened with inaction .