A video showing a robot describing exhibits by generating texts from an OWL ontology in a virtual museum in Second Life. The robot uses NaturalOWL, an open-source natural language generator for OWL ontologies, developed in the Department of Informatics of the Athens University of Economics and Business in Greece. NaturalOWL currently supports English and Greek. Consult aueb.gr/users/ion/publications.html for more information on NaturalOWL.