annotation_schemes:
  # Step 1: Define entity spans
  - annotation_type: span
    name: entities
    description: "Label entities in the text"
    labels:
      - name: PERSON
        color: "#3b82f6"
      - name: ORGANIZATION
        color: "#10b981"
      - name: LOCATION
        color: "#f59e0b"
      - name: WEAPON
        color: "#ef4444"
      - name: EVENT_TRIGGER
        color: "#8b5cf6"
        tooltip: "Words indicating events"
 
  # Step 2: Define event types and arguments
  - annotation_type: event_annotation
    name: events
    description: "Annotate events with triggers and arguments"
    span_schema: entities
    event_types:
      - type: "ATTACK"
        color: "#dc2626"
        trigger_labels: ["EVENT_TRIGGER"]
        arguments:
          - role: "attacker"
            entity_types: ["PERSON", "ORGANIZATION"]
            required: true
          - role: "target"
            entity_types: ["PERSON", "ORGANIZATION", "LOCATION"]
            required: true
          - role: "weapon"
            entity_types: ["WEAPON"]
            required: false

visual_display:
  enabled: true           # Show arc visualization (default: true)
  arc_position: above     # Position of arcs: "above" (default)
  show_labels: true       # Show role labels on arcs (default: true)

[
  {
    "id": "event_1",
    "text": "John attacked the building with a rifle."
  }
]

{
  "event_annotations": [
    {
      "id": "event_abc123",
      "schema": "events",
      "event_type": "ATTACK",
      "trigger_span_id": "span_xyz789",
      "arguments": [
        {"role": "attacker", "span_id": "span_def456"},
        {"role": "target", "span_id": "span_ghi012"},
        {"role": "weapon", "span_id": "span_jkl345"}
      ],
      "properties": {
        "color": "#dc2626",
        "trigger_text": "attacked",
        "trigger_label": "EVENT_TRIGGER"
      }
    }
  ]
}

annotation_schemes:
  - annotation_type: span
    name: entities
    description: "Label entities in the text"
    labels:
      - name: PERSON
        color: "#3b82f6"
      - name: ORGANIZATION
        color: "#10b981"
      - name: LOCATION
        color: "#f59e0b"
      - name: WEAPON
        color: "#ef4444"
      - name: EVENT_TRIGGER
        color: "#8b5cf6"
 
  - annotation_type: event_annotation
    name: events
    description: "Annotate events"
    span_schema: entities
    event_types:
      - type: "ATTACK"
        color: "#dc2626"
        trigger_labels: ["EVENT_TRIGGER"]
        arguments:
          - role: "attacker"
            entity_types: ["PERSON", "ORGANIZATION"]
            required: true
          - role: "target"
            entity_types: ["PERSON", "ORGANIZATION", "LOCATION"]
            required: true
          - role: "weapon"
            entity_types: ["WEAPON"]
            required: false
 
      - type: "HIRE"
        color: "#2563eb"
        trigger_labels: ["EVENT_TRIGGER"]
        arguments:
          - role: "employer"
            entity_types: ["ORGANIZATION"]
            required: true
          - role: "employee"
            entity_types: ["PERSON"]
            required: true
 
      - type: "TRAVEL"
        color: "#059669"
        trigger_labels: ["EVENT_TRIGGER"]
        arguments:
          - role: "traveler"
            entity_types: ["PERSON"]
            required: true
          - role: "destination"
            entity_types: ["LOCATION"]
            required: true
          - role: "origin"
            entity_types: ["LOCATION"]
            required: false