Classes Of Object - Implement Two Out Of Three Interfaces

I have three classes of object, most of which must implement two out of three interfaces. The interfaces look like this:

public interface Source {
public void startSending();
} public interface Sender {
public void setReceiver();

[Code] .....

That works fine, but I am wondering if pairing the interfaces into subinterfaces is a defensible methodology. For example, all classes that act like Producer must implement both the Source and Sender interfaces. And all classes that act like Relayer must implement the Sender and BlackHole interfaces. I could define two subinterfaces like this:

public interface Factory extends Source, Sender {
}
public interface Modifier extends BlackHole, Sender {
}

I could then define my classes like this:

public class Producer implements Factory {
}
public class Relayer implements Modifier {
}
public class Consumer implements BlackHole {
}

Within the class definitions, it makes no difference, as I will have to implement the same methods either way. But it seems more self-documentary to create the subinterfaces from their parent interfaces and name them in ways that reflect what the classes that implement them must actually do.