cryptic resource categories in sample data

The sample data seems to create categories named "Resource" which is incredibly confusing, since you end up with a hierarchy like this

Resource > Location > Resource

Which puts my brain throw an endless recursion exception.

I think we just need appropriate sample categories so it looks like:

Resource > Location > Classroom

and

Resource > Equipment > Projector

Which means Projector should be equipment, and there should be nothing under generic "Resource"