I may be missing something, but to any of them let you return information that is not a node in the underlying graph? I had a project once where a user request

I may be missing something, but to any of them let you return information that is not a node in the underlying graph? I had a project once where a user request would result in a graph that was derived: result nodes and edges were derived based on the database’s nodes and edges. Rolled my own system because nothing supported that. Related, do any of the let you do something simple like return a count of vertices obtained from a traversal, or do you need to walk a result and count them yourself?