Card

Test:

http://www.violonsduroy.com/en

  
    [
  {
    "@id": "http://www.violonsduroy.com/en",
    "http://schema.org/additionalType": [
      {
        "@id": "http://www.w3.org/2000/01/rdf-schema#Resource"
      }
    ]
  }
]