Rule sets for rdfs and owl

To include the inference rules defined in the semantics of RDF(S) and OWL, it would appear that you have to include rules sets such as those found at : 

http://www.agfa.com/w3c/euler/rdfs-rules.n3
http://www.agfa.com/w3c/euler/owl-rules.n3 <http://www.agfa.com/w3c/euler/rdfs-rules.n3> 

This indeed works for rdfs-rules; for example including rdfs-rules causes inference about the sub/super class to occur:
python ..\cwm.py aircraft.n3  http://www.agfa.com/w3c/euler/rdfs-rules.n3 --think -filter=ac-rules1.n3

However, when I do a similar thing with owl-rules cwm seems to hang (pegs processor for minutes at a time).

Is this the right way to invoke inference implied by the semantics of RDF(S) and OWL, or is there another way?
How can I get correct operation with owl-rules?

Regards,

David H. Jones
Boeing Phantom Works, 
Mathematics & Computing Technology
425-865-6924 
425-865-2964 (FAX)
david.h.jones@boeing.com

Received on Wednesday, 8 September 2004 18:36:50 UTC