Oh I got it; the above entities has nothing to do with any of your use cases! right?
Assuming these 2 entities doesn't have any relation with any of other classes. Please confirm
If that is the case, just put these two in the class diagram, and mention in assumptions that you are putting there because it was there in the domain model.
At least in my case, all entities were related; even though I had to change the relationship two places. I clearly mentioned that in the assumptions and without that change I couldn't have progressed