text: To start we need to export the ontology to a file. Note that one of the tabs at the top is History. Select that 
  tab. This tab shows a list of each version of the ontology. There should be 2 versions labelled R1 and R2 
  (in the right corner of each version). The most recent version is always at the top since that is typically 
  what you want although it is also possible to roll back changes to previous versions. We want to export 
  the latest version R2. Click on the R2 icon. This should give you a drop-down menu with two options: 
  Revert changes in revision 2 and Download revision 2. Select Download revision 2. This will prompt you 
  with the standard file browser for your OS to save a zip file with the new ontology. The ontology is saved 
  with a zip file because ontologies can be large and since Web Protégé is working over a network we may 
  want to limit the network traffic for large ontologies. Select the appropriate place to save the Zip archive 
  file on the machine where you have Protégé. Do the standard things you would do to unzip the file and 
  load it into Protégé. Note that when you unzip the file it will create a directory as well, so the file won’t 
  be directly under whatever directory you save it to. Instead, there will be a directory titled something like 
  pizza-with-data-ontologies-owl-REVISION-2 that the OWL file will be in. 