Review and fix UML diagram
We need to do a review of the UML and make sure it completely conforms to the ttl spec. I found one problem by chance, appreciatedWith should be appreciationWith, even though it might be better. A much appreciated sync-up was last done by @jvanbockryck a few years ago now, using protege plus manually.
Maybe some day we'll figure out how to automate it without losing positioning etc. Or not.