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:
You can use a roof to provide shelter.

Ex Output:
You can heat a roof to provide concrete .


Ex Input:
You are likely to paint a leg around in the bottom .

Ex Output:
You are likely to find a snake possibly in the floor .


Ex Input:
If you want to breathe some fresh air then you should open a window.

Ex Output:

If you want to land some fresh air then you should shutter a window .