text: This introduces Protégé 5 for creating OWL ontologies as well as various plugins. If you have questions 
  specific to this tutorial, please feel free to email me directly: mdebellissf@gmail.com However, if you 
  have general questions about Protégé, OWL, or plugins you should subscribe to and send an email to the 
  User Support for Protégé and Web Protégé email list. This list has many people (including me) who 
  monitor it and can contribute their knowledge to help you understand how to get the most out of this 
  technology. To subscribe to the list, go to: https://protege.stanford.edu/support.php and click on the first 
  orange Subscribe button. That will enable you to subscribe to the list and give you the email to send 
  questions to. 
  
  This chapter covers licensing and describes conventions used in the tutorial. Chapter 2 covers the 
  requirements for the tutorial and describes the Protégé user interface. Chapter 3 gives a brief overview of 
  the OWL ontology language. Chapter 4 focuses on building an OWL ontology with classes and object 
  properties. Chapter 4 also describes using a Description Logic Reasoner to check the consistency of the 
  ontology and automatically compute the ontology class hierarchy. 