{
  "@context": "https://schema.org",
  "@type": "WebPage",
  "@id": "#webpage",
  "name": "Loading",
  "description": "The page did not load its main content and only shows a loading message along with basic navigation links.",
  "publisher": {
    "@type": "Organization",
    "@id": "#publisher",
    "name": "Unknown"
  },
  "mainEntity": {
    "@type": "Thing",
    "name": "Unavailable main content",
    "description": "The page did not load its main content."
  },
  "breadcrumb": {
    "@type": "BreadcrumbList",
    "itemListElement": [
      {
        "@type": "ListItem",
        "position": 1,
        "name": "Loading"
      }
    ]
  },
  "potentialAction": {
    "@type": "ReadAction",
    "target": {
      "@type": "EntryPoint",
      "actionPlatform": "https://schema.org/DesktopWebPlatform"
    }
  }
}