R2RML ontology bug? constant shortcut property definition not according to spec.

Hi all,

I think I have identified problems with the constant shortcut properties 
rr:subject, rr:predicate, rr:object and rr:graph in the R2RML ontology 
(http://www.w3.org/ns/r2rml). It seems at their domain definitions are 
wrong and not according to the specification text.

The attached test ontology contains two examples which are equivalent 
according to the recommendation text, but inconsistent according to the 
R2RML ontology. The attachment explains this in more detail.

Regards,
Martin G. Skjæveland