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.

A credit card is disposed of plastic .
A credit card is handmade of plastic .

A student can begin a renewable school year .
A student  can begin a new school year.

You are likely to find a gold in large bodies of salt water .

You are likely to find a needle in large bodies of salt water .