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Your graph retriever returns individually correct tripl...
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See plansA strong answer investigates the mechanics of the retrieval process. It checks whether the three steps of the reasoning chain actually connected: were the right entities linked, did relational matching find edges that connect to anything, and did traversal run at all? It is also important to verify if structured retrieval was quietly replaced by flat similarity search over verbalized nodes, which would prevent the generator from seeing the necessary multihop path. A weak answer simply suggests using a better embedding model without confirming if the retrieved facts are actually connected in the graph.