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 observe a cat in attack .
You are likely to include a part in editing .

The effect of helping someone is improving a situation.
The habit of helping someone is improving a situation .

A counter might be constructed of steel .

A country might be constructed of e .