Web Payments Schema & RDF

I've been trying for some time to get the web payments schema to work with
RDF tooling.

But most of the tools I try with say that the RDF is broken

e.g.

https://w3id.org/commerce#source

http://graphite.ecs.soton.ac.uk/browser/?uri=https%3A%2F%2Fw3id.org%2Fcommerce%23source

Gives: "ZERO triples? Chances are your RDF is b0rken!"

Same thing happens in URI burner.

Would there be any possibility allow RDF (for example) to be given too as
well has human readable, which I think would make the schema more reuable
with various tooling.