"OR" in Schema spec

Hi,

At the moment, it seems to be impossible to create an "OR" statement in RDF
schema. This is because a property can only have one "range" property and
can therefore belong only to one class. How can I write a schema that says
for example that "a pet can be either a cat or a dog" and then have a list
of different breeds of cats and dogs in different classes?

Milla

Milla Makelainen
Smart Network Technology, Nortel Networks
email: millam@nortelnetworks.com
tel. +44 (0) 1279 403270
mobile +44 (0) 780 149 5538
-- "Wisdom is being able to cope"

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