We have a scenario where we have an RDF file provided by a third party, which we've imported in to Neo4j using the Neosemantics plugin. The third party RDF file is regularly updated so we wanted to host this graph with little to no changes.
However we do want to extend and embellish the third party graph with our own vertices and edges. So, the question is:
- Can you do cross graph queries (or federated in SPARQL terms) to return values from both graphs?
- If this is not possible what are the best approaches for extended an existing graph without impacting the original and still allowing for updates/imports?
Any help would be greatly received.