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 chess attack in a chess game .
You are likely to find a match king in a chess restaurant .

You are determined to find a file in a case .
You are subject to find a space in a notebook .

A murder weapon shouldn be a mean thin black dagger .

A murder weapon might be a long thin European dagger .