{
  "type": "apply",
  "operator": {
    "type": "word",
    "line": 1,
    "col": 1,
    "length": 1,
    "name": "="
  },
  "args": [
    {
      "type": "word",
      "line": 1,
      "col": 3,
      "length": 1,
      "name": "a"
    },
    {
      "type": "apply",
      "operator": {
        "type": "word",
        "line": 1,
        "col": 5,
        "length": 1,
        "name": "+"
      },
      "args": [
        {
          "type": "value",
          "value": 2,
          "line": 1,
          "col": 7,
          "length": 1
        },
        {
          "type": "apply",
          "operator": {
            "type": "word",
            "line": 1,
            "col": 9,
            "length": 1,
            "name": "*"
          },
          "args": [
            {
              "type": "value",
              "value": 3,
              "line": 1,
              "col": 11,
              "length": 1
            },
            {
              "type": "value",
              "value": 4,
              "line": 1,
              "col": 13,
              "length": 1
            }
          ]
        }
      ]
    }
  ]
}