@elf-pavlik: How about s/relationshipType/relationshipProperty/ or even simply using for now vf:property seeing when we really need
vf:relationshipProperty rdfs:subPropertyOf vf:property ?
this is an interesting idea, so here's a dedicated issue for discussion.
from https://github.com/valueflows/agent/pull/37#issuecomment-146963657,
this is an interesting idea, so here's a dedicated issue for discussion.