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 wall in a classroom.
You are likely to mark a wall in a classroom .

You would read the newspaper because you want to miss about explosions .
You would read the newspaper because you want to rule about explosions .

You are likely to find a shark around in the sea.

You are likely to explore a shark around in the zone .