example.json

{
    "labels": [
        {
            "label_name": "animal",
            "type": "categorical",
            "choices": [
                {
                    "choice_name": "dog",
                    "labels": [
                        {
                            "label_name": "breed",
                            "type": "categorical",
                            "choices": [
                                {
                                    "choice_name": "Bulldog"
                                },
                                {
                                    "choice_name": "Golden Retriever"
                                },
                                {
                                    "choice_name": "Shiba Inu"
                                }
                            ]
                        },
                        {
                            "label_name": "long-haired",
                            "type": "boolean"
                        }
                    ]
                },
                {
                    "choice_name": "cat",
                    "labels": [
                        {
                            "label_name": "color",
                            "type": "categorical",
                            "choices": [
                                {
                                    "choice_name": "black"
                                },
                                {
                                    "choice_name": "white"
                                },
                                {
                                    "choice_name": "orange"
                                }
                            ]
                        }
                    ]
                },
                {
                    "choice_name": "fish"
                }
            ]
        }
    ]
}