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Chapter 8 A Larger Ontology with some Individuals 
 
The rest of the tutorial requires some data loaded into your ontology. So far, we have mostly been dealing 
with defining classes and properties. This type of information is known in the semantic web community 
as T-Box information. The T stands for Terminological. Individuals or instances are known as A-Box. 
The A stands for Assertional as in specific facts that are asserted about the domain. Typically, there will 
be a much larger amount of A-Box information than T-Box. The A-Box information is often uploaded 
from spreadsheets, relational databases or other sources. One tool that is not covered in this tutorial that is 
useful is called Cellfie. Cellfie is a tool that can take data from spreadsheets and upload it into an 
ontology mapping the table-based data into objects and property values. For a tutorial on Cellfie see: 
https://github.com/protegeproject/cellfie-plugin/wiki/Grocery-Tutorial  
In addition to using Cellfie, you can use the Individuals by class tab introduced in chapter 5 to create new 
instances and to create object and data property values for those instances as you did with the Hot and 
Medium individuals in chapter 6. However, that can be tedious so to spare you that uninteresting work 
I’ve developed a version of the Pizza ontology that has many individuals already created. That ontology 
should be identical to the ontology you have developed so far except with many additional individuals. 
You can find this populated Pizza ontology at: https://tinyurl.com/PizzaWDataV2  Go to this URL and 
download the file to your local machine and then use File>Open. Before you do that, it is probably a good 
idea to close the current file so that there is no possible confusion between the Pizza ontology you 
developed and the new one with extra data.