[Pellet-users] ontology that crashes pellet with null-pointer exception

[Julian Seidenberg]

Hi,
I've built an ontology of music using Protege 4. The ontology crashes  
Pellet with a null-pointer exception when I attempt to classify it.  
It classifies correctly using FaCT++.

Here is the ontology:
http://www.cs.man.ac.uk/~seidenbj/music.owl

Any idea what is wrong?

Regards,
Julian