questionable test document(s)

Hi:

I accidentally ran my syntax checker on some non-approved tests, and came
up with some questionable test documents(s).  The one that I first found is 
http://www.w3.org/2002/03owlt/I5.8/consistent002.rdf

This file uses xsd:byte as a datatype ID without declaring it to be of type
rdfs:Datatype.  I believe that this means that the document is not in OWL
DL.

I expect that other documents are also in this situation.

peter