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.

You are likely to find a pillowcase in a bedroom.
You are likely to visit a pillowcase in a bedroom .

You can use the sky to test an airplane opposite the eye .
You can use the service to berth an airplane across the platform .

Dogs often howl at the fireplace .

Dogs often howl at the ceiling .