Hi:
In the AI&ML level, there are 5 classes. 4 of the classes share Virtual Lab 1. The list of classes should be on the right side of the screen where you click to "Open Lab", as shown below:
So that data that is pre-loaded in the Virtual Lab is described in each of the 4 courses.For example in the Visual Text Analytics class, in one of the practices you'll see this:
...which describes the data used in this practice.
The Deep Learning class is the 5th class and it has a separate Virtual Lab. For Deep Learning, all the data for that course is loaded in Virtual Lab 2. Please explore the 4 classes listed above to see what data you will be using in those classes.
Hope this helps you find the information,
Cynthia