I'm doing a pre-purchase test and would like to make sure the product is suitable. Can anyone answer my question?

Thank you for the response! I like to use existing relation types. Sorry but I still can’t understand, how to use them. Is there a step-to-step guide for this?
There an examples.

1. What I have

2. What I need

I can't figure it out, how to add and use different Relation types? When I add a new Relation, there only: Relation type = dependency = has dependency to.
How to use another Relation types, for example Database instance = is host for etc.?