Naming filleted connections

In RDF every connection has a property and in concept map every connection should have a name. Normally in RDF properties are only to help computer to interpret connection. But if we want to edit plain RDF or use RDF to represent concept map, all properties should be shown and editable.

As fillet technology is currently advancing fast, in filleted connections the fillet itself could be natural place for the connection property/name.

The property/name could also be changed by clicking the old name or the fillet.