You are looking at the HTML representation of the RAW format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the RAW format, set format=raw.
See the 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",
                "*": "",
                "subpages": "",
                "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",
                "*": "Aino wiki",
                "subpages": "",
                "canonical": "Project"
            },
            "5": {
                "id": 5,
                "case": "first-letter",
                "*": "Aino wiki talk",
                "subpages": "",
                "canonical": "Project talk"
            },
            "6": {
                "id": 6,
                "case": "first-letter",
                "*": "File",
                "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",
                "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",
                "canonical": "Category"
            },
            "15": {
                "id": 15,
                "case": "first-letter",
                "*": "Category talk",
                "subpages": "",
                "canonical": "Category talk"
            },
            "1502": {
                "id": 1502,
                "case": "first-letter",
                "*": "Blog",
                "canonical": "Blog"
            },
            "1503": {
                "id": 1503,
                "case": "first-letter",
                "*": "Blog talk",
                "canonical": "Blog talk"
            },
            "3010": {
                "id": 3010,
                "case": "first-letter",
                "*": "Magento",
                "subpages": "",
                "canonical": "Magento",
                "content": ""
            },
            "3011": {
                "id": 3011,
                "case": "first-letter",
                "*": "Magento talk",
                "canonical": "Magento talk"
            },
            "3012": {
                "id": 3012,
                "case": "first-letter",
                "*": "HTML",
                "subpages": "",
                "canonical": "HTML",
                "content": ""
            },
            "3013": {
                "id": 3013,
                "case": "first-letter",
                "*": "HTML talk",
                "canonical": "HTML talk"
            },
            "3014": {
                "id": 3014,
                "case": "first-letter",
                "*": "Linux",
                "subpages": "",
                "canonical": "Linux",
                "content": ""
            },
            "3015": {
                "id": 3015,
                "case": "first-letter",
                "*": "Linux talk",
                "canonical": "Linux talk"
            },
            "3016": {
                "id": 3016,
                "case": "first-letter",
                "*": "Apache",
                "subpages": "",
                "canonical": "Apache",
                "content": ""
            },
            "3017": {
                "id": 3017,
                "case": "first-letter",
                "*": "Apache talk",
                "canonical": "Apache talk"
            },
            "3018": {
                "id": 3018,
                "case": "first-letter",
                "*": "CSS",
                "subpages": "",
                "canonical": "CSS",
                "content": ""
            },
            "3019": {
                "id": 3019,
                "case": "first-letter",
                "*": "CSS talk",
                "canonical": "CSS talk"
            },
            "3020": {
                "id": 3020,
                "case": "first-letter",
                "*": "Wiki",
                "subpages": "",
                "canonical": "Wiki",
                "content": ""
            },
            "3021": {
                "id": 3021,
                "case": "first-letter",
                "*": "Wiki talk",
                "canonical": "Wiki talk"
            },
            "3022": {
                "id": 3022,
                "case": "first-letter",
                "*": "PHP",
                "subpages": "",
                "canonical": "PHP",
                "content": ""
            },
            "3023": {
                "id": 3023,
                "case": "first-letter",
                "*": "PHP talk",
                "canonical": "PHP talk"
            },
            "3024": {
                "id": 3024,
                "case": "first-letter",
                "*": "JQuery",
                "subpages": "",
                "canonical": "JQuery",
                "content": ""
            },
            "3025": {
                "id": 3025,
                "case": "first-letter",
                "*": "JQuery talk",
                "canonical": "JQuery talk"
            },
            "3026": {
                "id": 3026,
                "case": "first-letter",
                "*": "WordPress",
                "subpages": "",
                "canonical": "WordPress",
                "content": ""
            },
            "3027": {
                "id": 3027,
                "case": "first-letter",
                "*": "WordPress talk",
                "canonical": "WordPress talk"
            },
            "3028": {
                "id": 3028,
                "case": "first-letter",
                "*": "NetBeans",
                "subpages": "",
                "canonical": "NetBeans",
                "content": ""
            },
            "3029": {
                "id": 3029,
                "case": "first-letter",
                "*": "NetBeans talk",
                "canonical": "NetBeans talk"
            },
            "3030": {
                "id": 3030,
                "case": "first-letter",
                "*": "Eclipse",
                "subpages": "",
                "canonical": "Eclipse",
                "content": ""
            },
            "3031": {
                "id": 3031,
                "case": "first-letter",
                "*": "Eclipse talk",
                "canonical": "Eclipse talk"
            },
            "3034": {
                "id": 3034,
                "case": "first-letter",
                "*": "PhoneGap",
                "subpages": "",
                "canonical": "PhoneGap",
                "content": ""
            },
            "3035": {
                "id": 3035,
                "case": "first-letter",
                "*": "PhoneGap talk",
                "canonical": "PhoneGap talk"
            },
            "3036": {
                "id": 3036,
                "case": "first-letter",
                "*": "CSharp",
                "subpages": "",
                "canonical": "CSharp",
                "content": ""
            },
            "3037": {
                "id": 3037,
                "case": "first-letter",
                "*": "CSharp talk",
                "canonical": "CSharp talk"
            },
            "3038": {
                "id": 3038,
                "case": "first-letter",
                "*": "NoteAttivitaSviluppo",
                "subpages": "",
                "canonical": "NoteAttivitaSviluppo",
                "content": ""
            },
            "3039": {
                "id": 3039,
                "case": "first-letter",
                "*": "NoteAttivitaSviluppo talk",
                "canonical": "NoteAttivitaSviluppo talk"
            },
            "3040": {
                "id": 3040,
                "case": "first-letter",
                "*": "MySQL",
                "subpages": "",
                "canonical": "MySQL",
                "content": ""
            },
            "3041": {
                "id": 3041,
                "case": "first-letter",
                "*": "MySQL talk",
                "canonical": "MySQL talk"
            },
            "3042": {
                "id": 3042,
                "case": "first-letter",
                "*": "VisualStudio",
                "subpages": "",
                "canonical": "VisualStudio",
                "content": ""
            },
            "3043": {
                "id": 3043,
                "case": "first-letter",
                "*": "VisualStudio talk",
                "canonical": "VisualStudio talk"
            },
            "3044": {
                "id": 3044,
                "case": "first-letter",
                "*": "MSSQL",
                "subpages": "",
                "canonical": "MSSQL",
                "content": ""
            },
            "3045": {
                "id": 3045,
                "case": "first-letter",
                "*": "MSSQL talk",
                "canonical": "MSSQL talk"
            },
            "3046": {
                "id": 3046,
                "case": "first-letter",
                "*": "XDebug",
                "subpages": "",
                "canonical": "XDebug",
                "content": ""
            },
            "3047": {
                "id": 3047,
                "case": "first-letter",
                "*": "XDebug talk",
                "canonical": "XDebug talk"
            },
            "3048": {
                "id": 3048,
                "case": "first-letter",
                "*": "Windows7",
                "subpages": "",
                "canonical": "Windows7",
                "content": ""
            },
            "3049": {
                "id": 3049,
                "case": "first-letter",
                "*": "Windows7 talk",
                "canonical": "Windows7 talk"
            },
            "3050": {
                "id": 3050,
                "case": "first-letter",
                "*": "SWUtility",
                "subpages": "",
                "canonical": "SWUtility",
                "content": ""
            },
            "3051": {
                "id": 3051,
                "case": "first-letter",
                "*": "SWUtility talk",
                "canonical": "SWUtility talk"
            },
            "3052": {
                "id": 3052,
                "case": "first-letter",
                "*": "Programmazione",
                "subpages": "",
                "canonical": "Oracle",
                "content": ""
            },
            "3053": {
                "id": 3053,
                "case": "first-letter",
                "*": "Programmazione Talk",
                "subpages": "",
                "canonical": "Oracle talk"
            },
            "3054": {
                "id": 3054,
                "case": "first-letter",
                "*": "NavigazioneMarittima",
                "subpages": "",
                "canonical": "MSPowerApp",
                "content": ""
            },
            "3055": {
                "id": 3055,
                "case": "first-letter",
                "*": "NavigazioneMarittima Talk",
                "subpages": "",
                "canonical": "MSPowerApp talk"
            },
            "3056": {
                "id": 3056,
                "case": "first-letter",
                "*": "Java Script",
                "subpages": "",
                "canonical": "Java Script",
                "content": ""
            },
            "3057": {
                "id": 3057,
                "case": "first-letter",
                "*": "Java Script Talk",
                "subpages": "",
                "canonical": "Java Script Talk"
            },
            "3058": {
                "id": 3058,
                "case": "first-letter",
                "*": "Cartografia",
                "canonical": "Cartografia",
                "content": ""
            },
            "3059": {
                "id": 3059,
                "case": "first-letter",
                "*": "Cartografia Talk",
                "subpages": "",
                "canonical": "Cartografia Talk"
            },
            "3060": {
                "id": 3060,
                "case": "first-letter",
                "*": "Android",
                "subpages": "",
                "canonical": "Android",
                "content": ""
            },
            "3061": {
                "id": 3061,
                "case": "first-letter",
                "*": "Android Talk",
                "subpages": "",
                "canonical": "Android Talk"
            },
            "_element": "ns"
        }
    }
}