[
  [
    [
      {
        "reject": [],
        "match": "Mailbox"
      }
    ],
    [
      {
        "weight": 1,
        "data": {
          "type": "anim",
          "cat": "emoji",
          "meta": "?(Mailbox, mail)",
          "layers": "!(audio)"
        }
      }
    ]
  ]
]