{
  "0": {
    "cui": "C0000005",
    "name": "Metformin",
    "definition": "A biguanide antihyperglycemic agent.",
    "source": "UMLS"
  },
  "1": {
    "cui": "C0011849",
    "name": "Diabetes Mellitus, Type 2",
    "definition": "A metabolic disorder characterized by high blood sugar.",
    "source": "UMLS"
  }
  // ... add entries for each row in umls_embeddings.npy
}