A place to start
Of course a few names will change, but here is where I think is the most stable place to start. And probably most useful, in terms of experimenting with value flow tracing.
Resource, Process, Event, Agent, Person, Group, Relationship, Action - with their properties
I can help you figure out what in LOD land this involves. If you use a sqlite database, we'll have to add on something for RelationshipType, which needs a new name and is not needed in LOD. And Action will be different in the db and LOD.