{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "Extract",
    "description": "Extract of a chapter",
    "type": "object",
    "properties": {
        "title": {
            "description": "Title of the extract",
            "type": "string",
            "maxLength": 80
        },
        "text": {
            "desciption": "Content of the extract",
            "type": "string"
        }
    },
    "required": [
        "title"
    ]
}