{
  "schema": "semantic-engineering-object-v1",
  "object_id": "c06-heater-reference",
  "entities": [
    {
      "id": "tube_bottom_support",
      "type": "support_reference",
      "role": "Selected bottom reference for vertical tube growth"
    },
    {
      "id": "process_tube",
      "type": "heated_component",
      "movement": "Growth upward away from selected bottom reference"
    },
    {
      "id": "heater_supported_ring",
      "type": "external_manifold",
      "support": "heater_structure"
    },
    {
      "id": "grade_supported_ring",
      "type": "external_manifold",
      "support": "grade_structure"
    },
    {
      "id": "furnished_manifold",
      "type": "supplier_assembly",
      "role": "Retain furnished geometry and communicate field loads/movement"
    }
  ],
  "relations": [
    {
      "from": "process_tube",
      "to": "tube_bottom_support",
      "type": "growth_reference"
    },
    {
      "from": "heater_supported_ring",
      "to": "heater_structure",
      "type": "load_and_movement_interface"
    },
    {
      "from": "grade_supported_ring",
      "to": "grade_structure",
      "type": "load_and_movement_interface"
    }
  ],
  "alternatives": [
    "Different tube support reference changes bottom nozzle movement",
    "Top connection changes external route and reference relationship"
  ],
  "limits": [
    "No assigned displacement/force",
    "Grade-supported ring not assumed to follow heater steel",
    "No universal bottom-support recommendation or nozzle acceptance"
  ]
}