{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$id": "#Document",
    "description": "A document or data object.",
    "type": "object",
    "allOf": [
        {
            "$ref": "#Entity"
        },
        {
            "properties": {
                "product": {
                    "description": "The name of the product this document is applicable to. This reference is used when the document is product related, such as a product requirement document (PRD) or software bill-of-materials (SBOM).",
                    "type": "string"
                },
                "version": {
                    "description": "The version of this document.",
                    "type": "string"
                }
            },
            "required": []
        }
    ]
}