{
    "url": "/",
    "title": "Web Development",
    "children": [
        {
            "url": "/markup",
            "title": "Markup & Data Formats",
            "children": [
                {
                    "url": "/markup/html",
                    "title": "HTML"
                }, {
                    "url": "/markup/xhtml",
                    "title": "XHTML"
                }, {
                    "url": "/markup/css",
                    "title": "CSS"
                }, {
                    "title": "Data Formats"
                }, {
                    "url": "/data/xml",
                    "title": "XML"
                }, {
                    "url": "/data/yaml",
                    "title": "YAML"
                }, {
                    "url": "/data/json",
                    "title": "JSON"
                }
            ]
        }, {
            "url": "/languages",
            "title": "Languages",
            "children": [
                {
                    "url": "/language/php",
                    "title": "PHP",
                    "children": [
                        {
                            "url": "/language/php/hhvm",
                            "title": "HHVM"
                        }, {
                            "url": "/language/php/hack",
                            "title": "Hack"
                        }
                    ]
                }, {
                    "url": "/language/ruby",
                    "title": "Ruby"
                }, {
                    "url": "/language/python",
                    "title": "Python"
                }, {
                    "url": "/language/java",
                    "title": "Java"
                }, {
                    "url": "/language/go",
                    "title": "Go"
                }, {
                    "url": "/language/javascript",
                    "title": "JavaScript",
                    "children": [
                        {
                            "url": "/language/javascript/node",
                            "title": "Node.js"
                        }, {
                            "url": "/language/javascript/io",
                            "title": "IO.js"
                        }
                    ]
                }, {
                    "url": "/language/c",
                    "title": "C"
                }, {
                    "url": "/language/cpp",
                    "title": "C++"
                }, {
                    "url": "/language/c-sharp",
                    "title": "C#"
                }, {
                    "url": "/language/rust",
                    "title": "Rust"
                }, {
                    "url": "/language/Nim",
                    "title": "Nim"
                }
            ]
        }, {
            "url": "/databases",
            "title": "Databases",
            "children": [
                {
                    "url": "/database/mysql",
                    "title": "MySQL"
                }, {
                    "url": "/database/postgresql",
                    "title": "PostgreSQL"
                }, {
                    "url": "/database/sqlite",
                    "title": "SQLite"
                }, {
                    "url": "/database/oracle",
                    "title": "Oracle"
                }, {
                    "url": "/database/sql-server",
                    "title": "SQL Server"
                }, {
                    "title": "NoSQL"
                }, {
                    "url": "/database/mongodb",
                    "title": "MongoDB"
                }
            ]
        }
    ]
}