How can I get the argument(s) of a stub in sinon and use one of the arguments + other data for the return value of a particular stub call

What I am trying to achieve is to stub a call which will return a certain value. That return value consists of one of the passed parameters and a new value.

How can I grab the argument of a stub and use it to form a return value for a given stub call

E.g.

mockDb.query.onCall(0).return(
   Tuple(this.args(0), "Some other data");
);

I know I can do this:

sinon.stub(obj, "hello", function (a) {
    return a;
});

However, this works on the entire stub and not an individual stub call. Unfortunately, I am not able to provide a different stub for different calls, as I have just one object(the db stub).