It's an anti-pattern to have a "typed" relationship unless there are a very large number of relationship types.  It makes assessing the 80% harder and requires slicing to set expectations.

Also, in this case, the set of type codes is completely up in the air, so there's no basis for anyone understanding any of the relationships.  At minimum, it should be an extensible binding so there's at least a common understanding of key relationships.  (Note that additional relationships might be better handled using extensions anyhow.)

Finally, the two codes that do exist don't seem to be mutually exclusive.  What's the expected behavior if they both hold?