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:
If you pledge to duck to an opera then you should draft tickets first .

Ex Output:
If you want to go to an opera then you should buy tickets first.


Ex Input:
You would learn about science because you want to become a researcher.

Ex Output:

You would lecture about space because you want to thank a researcher .