You are looking at the HTML representation of the YAML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information.
{
    "query": {
        "namespaces": {
            "-2": {
                "id": -2,
                "case": "first-letter",
                "*": "Media",
                "canonical": "Media"
            },
            "-1": {
                "id": -1,
                "case": "first-letter",
                "*": "Special",
                "canonical": "Special"
            },
            "0": {
                "id": 0,
                "case": "first-letter",
                "*": "",
                "content": ""
            },
            "1": {
                "id": 1,
                "case": "first-letter",
                "*": "Talk",
                "subpages": "",
                "canonical": "Talk"
            },
            "2": {
                "id": 2,
                "case": "first-letter",
                "*": "User",
                "subpages": "",
                "canonical": "User"
            },
            "3": {
                "id": 3,
                "case": "first-letter",
                "*": "User talk",
                "subpages": "",
                "canonical": "User talk"
            },
            "4": {
                "id": 4,
                "case": "first-letter",
                "*": "LyricWiki",
                "subpages": "",
                "canonical": "Project"
            },
            "5": {
                "id": 5,
                "case": "first-letter",
                "*": "LyricWiki talk",
                "subpages": "",
                "canonical": "Project talk"
            },
            "6": {
                "id": 6,
                "case": "first-letter",
                "*": "File",
                "subpages": "",
                "canonical": "File"
            },
            "7": {
                "id": 7,
                "case": "first-letter",
                "*": "File talk",
                "subpages": "",
                "canonical": "File talk"
            },
            "8": {
                "id": 8,
                "case": "first-letter",
                "*": "MediaWiki",
                "subpages": "",
                "canonical": "MediaWiki"
            },
            "9": {
                "id": 9,
                "case": "first-letter",
                "*": "MediaWiki talk",
                "subpages": "",
                "canonical": "MediaWiki talk"
            },
            "10": {
                "id": 10,
                "case": "first-letter",
                "*": "Template",
                "subpages": "",
                "canonical": "Template"
            },
            "11": {
                "id": 11,
                "case": "first-letter",
                "*": "Template talk",
                "subpages": "",
                "canonical": "Template talk"
            },
            "12": {
                "id": 12,
                "case": "first-letter",
                "*": "Help",
                "subpages": "",
                "canonical": "Help"
            },
            "13": {
                "id": 13,
                "case": "first-letter",
                "*": "Help talk",
                "subpages": "",
                "canonical": "Help talk"
            },
            "14": {
                "id": 14,
                "case": "first-letter",
                "*": "Category",
                "subpages": "",
                "canonical": "Category"
            },
            "15": {
                "id": 15,
                "case": "first-letter",
                "*": "Category talk",
                "subpages": "",
                "canonical": "Category talk"
            },
            "110": {
                "id": 110,
                "case": "first-letter",
                "*": "Forum",
                "subpages": "",
                "canonical": "Forum"
            },
            "111": {
                "id": 111,
                "case": "first-letter",
                "*": "Forum talk",
                "subpages": "",
                "canonical": "Forum talk"
            },
            "112": {
                "id": 112,
                "case": "first-letter",
                "*": "Fans",
                "canonical": "Fans"
            },
            "113": {
                "id": 113,
                "case": "first-letter",
                "*": "Fans talk",
                "canonical": "Fans talk"
            },
            "222": {
                "id": 222,
                "case": "first-letter",
                "*": "LyricFind",
                "canonical": "LyricFind"
            },
            "223": {
                "id": 223,
                "case": "first-letter",
                "*": "LyricFind talk",
                "canonical": "LyricFind talk"
            },
            "500": {
                "id": 500,
                "case": "first-letter",
                "*": "User blog",
                "subpages": "",
                "canonical": "User blog"
            },
            "501": {
                "id": 501,
                "case": "first-letter",
                "*": "User blog comment",
                "subpages": "",
                "canonical": "User blog comment"
            },
            "502": {
                "id": 502,
                "case": "first-letter",
                "*": "Blog",
                "subpages": "",
                "canonical": "Blog"
            },
            "503": {
                "id": 503,
                "case": "first-letter",
                "*": "Blog talk",
                "subpages": "",
                "canonical": "Blog talk"
            },
            "828": {
                "id": 828,
                "case": "first-letter",
                "*": "Module",
                "subpages": "",
                "canonical": "Module"
            },
            "829": {
                "id": 829,
                "case": "first-letter",
                "*": "Module talk",
                "subpages": "",
                "canonical": "Module talk"
            },
            "1200": {
                "id": 1200,
                "case": "first-letter",
                "*": "Message Wall",
                "canonical": "Message Wall"
            },
            "1201": {
                "id": 1201,
                "case": "first-letter",
                "*": "Thread",
                "subpages": "",
                "canonical": "Thread"
            },
            "1202": {
                "id": 1202,
                "case": "first-letter",
                "*": "Message Wall Greeting",
                "canonical": "Message Wall Greeting"
            }
        }
    }
}