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 would sign a contract because you want to restore a house .
You would sign a contract because you want to buy a house.

If you want to hit your shoelace then you should put the shoe on .
If you want to tie your shoelace then you should put the paint on .

If you exist to attend a night then you should be on plan .

If you want to agree a meeting then you should be on target .