Apologies if I implied we just magically work things out, there is indeed an setup process where you help the app learn your ontology and how it maps to your physical infrastructure. This is, however, an iterative process, and you're likely to be able to get off the ground in hours, not days. Some people's data will be beyond us, I freely admit - in those cases you can do the work and supply us with something more or less resembling RDF.