[Sem] Fully worked out example for the “store the log of the execution of a SPARQL update” case

Even if we don’t have the actual use case, would it be possible that some of you tries to write down before today's meeting a fully worked out example of the expected behaviour of the “store the log of the execution of a SPARQL update” case?
This use case apparently still eludes the currently known variants of the semantics for RDF-star explored so far.
cheers
—e.

So we focussed on the semi-transparent case, which turned out that it could have several different interpretations, depending on how we interpret bnodes. So, we started to discuss “What’s in a semi-transparent bnode”. We considered the use case (?) on how to characterise in RDF-star the log of a SPARQL update.