// Load from URL
provider := ontology.NewRDFProvider()
onto, err := provider.Load(ctx, "https://example.com/medical-ontology.rdf")

// Load from file
onto, err := provider.Load(ctx, "/path/to/ontology.rdf")

// Search for concepts
concepts, err := provider.Query(ctx, ontology, "machine learning")

// Link an entity to matching ontology concepts
entity := &types.Entity{
    Name: "Neural Network",
    Type: "concept",
}

links, err := provider.Link(ctx, entity, ontology)
// Returns matching concepts with confidence scores

{
  "concept_id": "http://example.com/nn",
  "concept_name": "Neural Network",
  "match_score": 0.95,
  "link_type": "exact_match",
  "properties": {
    "definition": "Computing system inspired by biological neural networks",
    "domain": "machine_learning"
  }
}

provider := ontology.NewRDFProvider()
onto, _ := provider.Load(ctx, source)

provider := ontology.NewOWLProvider()
onto, _ := provider.Load(ctx, source)

provider := ontology.NewSKOSProvider()
onto, _ := provider.Load(ctx, source)