Hi Jaka
Here is an example.
In this example, I have configured INCEpTION to consider the "part-of" relation (P8) to be the subclass relation. This causes all lexemes to show up under the dictionary (Q15).
I was also going to try an example where the senses would show up under the lexemes, but looking at a sense I did not find a property indicating that the sense belongs to a particular lexeme.
Also, INCEpTION does currently not support the "wikibase:label" service - only the corresponding Wikidata version. So queries are a bit slow at the moment.
Maybe this can be a starting point for looking further into mapping your data to INCEpTION.
-- Richard