What's the format for a tiered selector JSON file?

An example of the JSON format used for tiered selectors in your Smart Form.

The format is as follows. You can create as many nested lists as you need.

{
"listLabel": "list label",
"list": [
{
"value": "Accommodation Service Industries",
"label": "Accommodation Service Industries",
"listLabel": "Account Description",
"list": [
{
"label": "Camping Grounds and Travel Trailer Parks",
"value": {
"label": "Camping Grounds",
"sic": "9131"
}
}
]
}
}

Example file