[
    {
        "cat": "Book Stores" ,
        "shelves": [
            {
                "name": "Amazon",
                "desc": "Browse Amazon Bookstore",
                "id": 1
            },
            {
                "name": "Kinokuniya",
                "desc": "Browse Amazon Bookstore",
                "id": 2
            }
        ]
    },
    {
        "cat": "Friend's Shelves",
        "shelves": [
            {
                "name": "Agus",
                "desc": "Browse Agus's Bookshelve",
                "userid": "agus@gmail.com"
            },
            {
                "name": "Honcheng",
                "desc": "Browse Honcheng's Bookshelve",
                "userid": "honcheng@gmail.com"
            } ,
            {
                "name": "Jeremiah",
                "desc": "Browse Jeremiah's Bookshelve",
                "userid": "jeremiah@gmail.com"
            },
            {
                "name": "Wade",
                "desc": "Browse Wade's Bookshelve",
                "userid": "wade@gmail.com"
            }
        ]
    }
]