{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://publicschema.org/InstitutionalRelationship.schema.json",
  "title": "InstitutionalRelationship",
  "description": "A dated, directed relationship between two organizations, such as one being part of, supervised by, affiliated with or a member of the other. The relationship type fixes its direction and meaning; none of these relationships expresses ownership or control by itself. A merger, split or succession is an OrganizationalChangeEvent instead.",
  "type": "object",
  "properties": {
    "institution_from": {
      "oneOf": [
        {
          "$ref": "https://publicschema.org/Organization.schema.json"
        },
        {
          "type": "string",
          "description": "URI or identifier reference"
        }
      ],
      "description": "The organization at the start of the directed institutional relationship."
    },
    "institution_to": {
      "oneOf": [
        {
          "$ref": "https://publicschema.org/Organization.schema.json"
        },
        {
          "type": "string",
          "description": "URI or identifier reference"
        }
      ],
      "description": "The organization at the end of the directed institutional relationship."
    },
    "institutional_relationship_type": {
      "$ref": "https://publicschema.org/CodedValue.schema.json",
      "description": "The kind of institutional relationship, which also fixes which organization is at its start and which is at its end."
    },
    "start_date": {
      "type": "string",
      "format": "date",
      "description": "The date on which this became effective."
    },
    "end_date": {
      "type": "string",
      "format": "date",
      "description": "The last day on which this is effective. A period includes both its start date and its end date, so a period that applies only on 30 June 2026 has start date 2026-06-30 and end date 2026-06-30."
    }
  }
}