core/homeassistant/components/rdw/strings.json

{
  "config": {
    "step": {
      "user": {
        "data": {
          "license_plate": "License plate"
        }
      }
    },
    "error": {
      "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
      "unknown_license_plate": "Unknown license plate"
    }
  }
}