travelling through the TM data model, incremental, step by step
step -> axis ( ':>:' | ':<:' ) [ item-reference ] navigation -> step [ navigation ]
classes, instances: leipzig classes :>:
superclasses, subclasses: city superclasses :<:
players, roles: city players :<: location
city players :<: location players :>: event
characteristics: leipzig characteristics :>: name
more for following scope, reification, subject address, subject indication
Maybe this should be (or have been) part of TMDM?