Questions about relationship concepts

[natoverse]

Moving from #788

I opened the generated GraphML files in Gephi, and unlike the entities, it seems that the relationships are not typed and only have descriptions. My questions are:

1. Do these relationship descriptions play a role in the query process?
2. Can I set typed relationships, as we do with entities, or is GraphRAG designed to work without relationship types?

[natoverse]

1. Yes, the relationship descriptions are included in the summarization for local search (configurable top k relationships related to matched input entity).
2. We do not establish any relationship types during indexing, and this is not configurable. You could potentially tune the graph extraction prompt to add some form of relationship type to the description, but it would not be a structured data field like entity type. The "type" displayed in your Gephi screenshot is part of the graphml definition, and just indicates that it is an undirected graph.

[MiratPH]

Thank you, it's really helpful.