How to use OWL/RDL to represent and query a connected graph?

Question

In PROLOG you can represent and query a connect graph, as in this tutorial:

http://www.csupomona.edu/~jrfisher/www/prolog_tutorial/2_15.html

How would you do this using an OWL/RDL tool such as Protégé (http://protege.stanford.edu/)?

Answer 1

I believe you can achieve this by using a semantic reasoner, such as Racer Pro (non-free) and Pellet (free, open source if under used in an open source project).

This wikipedia page gives a comprehensive list of reasoners available with a comparison table.