You are looking at the HTML representation of the YAML 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 YAML format, set format=yaml.
See the complete documentation, or API help for more information.
{
    "query": {
        "namespaces": {
            "-2": {
                "id": -2,
                "case": "first-letter",
                "*": "Medium",
                "canonical": "Media"
            },
            "-1": {
                "id": -1,
                "case": "first-letter",
                "*": "Spezial",
                "canonical": "Special"
            },
            "0": {
                "id": 0,
                "case": "first-letter",
                "*": "",
                "content": ""
            },
            "1": {
                "id": 1,
                "case": "first-letter",
                "*": "Diskussion",
                "subpages": "",
                "canonical": "Talk"
            },
            "2": {
                "id": 2,
                "case": "first-letter",
                "*": "Benutzer",
                "subpages": "",
                "canonical": "User"
            },
            "3": {
                "id": 3,
                "case": "first-letter",
                "*": "Benutzer Diskussion",
                "subpages": "",
                "canonical": "User talk"
            },
            "4": {
                "id": 4,
                "case": "first-letter",
                "*": "FuemoWiki",
                "subpages": "",
                "canonical": "Project"
            },
            "5": {
                "id": 5,
                "case": "first-letter",
                "*": "FuemoWiki Diskussion",
                "subpages": "",
                "canonical": "Project talk"
            },
            "6": {
                "id": 6,
                "case": "first-letter",
                "*": "Datei",
                "canonical": "File"
            },
            "7": {
                "id": 7,
                "case": "first-letter",
                "*": "Datei Diskussion",
                "subpages": "",
                "canonical": "File talk"
            },
            "8": {
                "id": 8,
                "case": "first-letter",
                "*": "MediaWiki",
                "subpages": "",
                "canonical": "MediaWiki"
            },
            "9": {
                "id": 9,
                "case": "first-letter",
                "*": "MediaWiki Diskussion",
                "subpages": "",
                "canonical": "MediaWiki talk"
            },
            "10": {
                "id": 10,
                "case": "first-letter",
                "*": "Vorlage",
                "canonical": "Template"
            },
            "11": {
                "id": 11,
                "case": "first-letter",
                "*": "Vorlage Diskussion",
                "subpages": "",
                "canonical": "Template talk"
            },
            "12": {
                "id": 12,
                "case": "first-letter",
                "*": "Hilfe",
                "subpages": "",
                "canonical": "Help"
            },
            "13": {
                "id": 13,
                "case": "first-letter",
                "*": "Hilfe Diskussion",
                "subpages": "",
                "canonical": "Help talk"
            },
            "14": {
                "id": 14,
                "case": "first-letter",
                "*": "Kategorie",
                "canonical": "Category"
            },
            "15": {
                "id": 15,
                "case": "first-letter",
                "*": "Kategorie Diskussion",
                "subpages": "",
                "canonical": "Category talk"
            },
            "100": {
                "id": 100,
                "case": "first-letter",
                "*": "Mfr",
                "subpages": "",
                "canonical": "Mfr",
                "content": ""
            },
            "101": {
                "id": 101,
                "case": "first-letter",
                "*": "Mfr talk",
                "canonical": "Mfr talk"
            },
            "102": {
                "id": 102,
                "case": "first-letter",
                "*": "Ndb",
                "subpages": "",
                "canonical": "Ndb",
                "content": ""
            },
            "103": {
                "id": 103,
                "case": "first-letter",
                "*": "Ndb talk",
                "canonical": "Ndb talk"
            },
            "104": {
                "id": 104,
                "case": "first-letter",
                "*": "Obb",
                "subpages": "",
                "canonical": "Obb",
                "content": ""
            },
            "105": {
                "id": 105,
                "case": "first-letter",
                "*": "Obb talk",
                "canonical": "Obb talk"
            },
            "106": {
                "id": 106,
                "case": "first-letter",
                "*": "Ofr",
                "subpages": "",
                "canonical": "Ofr",
                "content": ""
            },
            "107": {
                "id": 107,
                "case": "first-letter",
                "*": "Ofr talk",
                "canonical": "Ofr talk"
            },
            "108": {
                "id": 108,
                "case": "first-letter",
                "*": "Opf",
                "subpages": "",
                "canonical": "Opf",
                "content": ""
            },
            "109": {
                "id": 109,
                "case": "first-letter",
                "*": "Opf talk",
                "canonical": "Opf talk"
            },
            "110": {
                "id": 110,
                "case": "first-letter",
                "*": "Swa",
                "subpages": "",
                "canonical": "Swa",
                "content": ""
            },
            "111": {
                "id": 111,
                "case": "first-letter",
                "*": "Swa talk",
                "canonical": "Swa talk"
            },
            "112": {
                "id": 112,
                "case": "first-letter",
                "*": "Ufr",
                "subpages": "",
                "canonical": "Ufr",
                "content": ""
            },
            "113": {
                "id": 113,
                "case": "first-letter",
                "*": "Ufr talk",
                "canonical": "Ufr talk"
            },
            "114": {
                "id": 114,
                "case": "first-letter",
                "*": "Bln",
                "subpages": "",
                "canonical": "Bln",
                "content": ""
            },
            "115": {
                "id": 115,
                "case": "first-letter",
                "*": "Bln talk",
                "canonical": "Bln talk"
            }
        }
    }
}