Schema Article with Comments [ Work in Progress ]

article.json

{
  "@context": "http://schema.org",
  "@type": "Article",
  "author": "John Doe",
  "interactionStatistic": [
    {
      "@type": "InteractionCounter",
      "interactionService": {
        "@type": "Website",
        "name": "Twitter",
        "url": "http://www.twitter.com"
      },
      "interactionType": "http://schema.org/ShareAction",
      "userInteractionCount": "1203"
    },
    {
      "@type": "InteractionCounter",
      "interactionType": "http://schema.org/CommentAction",
      "userInteractionCount": "78"
    }
  ],
  "name": "How to Tie a Reef Knot",
  "comment": [
    {
      "@type": "Comment",
      "about": {
        "@type": "Thing",
        "id": "https://www.domain.com/#comments"
      }
    }
  ]
}