{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": [
    "nietAkkoord"
  ],
  "properties": {
    "nietAkkoord": {
      "title": "Ik ben niet akkoord",
      "type": "boolean",
      "oneOf": [
        {
          "const": true,
          "title": "Ja"
        },
        {
          "const": false,
          "title": "Nee"
        }
      ],
      "not": {
        "const": true
      }
    }
  }
}