You are looking at the HTML representation of the RAW 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",
				"*": "M\u00e9dia",
				"canonical": "Media"
			},
			"-1": {
				"id": -1,
				"case": "first-letter",
				"*": "Sp\u00e9cial",
				"canonical": "Special"
			},
			"0": {
				"id": 0,
				"case": "first-letter",
				"*": "",
				"content": ""
			},
			"1": {
				"id": 1,
				"case": "first-letter",
				"*": "Discussion",
				"subpages": "",
				"canonical": "Talk"
			},
			"2": {
				"id": 2,
				"case": "first-letter",
				"*": "Utilisateur",
				"subpages": "",
				"canonical": "User"
			},
			"3": {
				"id": 3,
				"case": "first-letter",
				"*": "Discussion utilisateur",
				"subpages": "",
				"canonical": "User talk"
			},
			"4": {
				"id": 4,
				"case": "first-letter",
				"*": "Ressources dev",
				"canonical": "Project"
			},
			"5": {
				"id": 5,
				"case": "first-letter",
				"*": "Discussion Ressources dev",
				"subpages": "",
				"canonical": "Project talk"
			},
			"6": {
				"id": 6,
				"case": "first-letter",
				"*": "Fichier",
				"canonical": "File"
			},
			"7": {
				"id": 7,
				"case": "first-letter",
				"*": "Discussion fichier",
				"subpages": "",
				"canonical": "File talk"
			},
			"8": {
				"id": 8,
				"case": "first-letter",
				"*": "MediaWiki",
				"subpages": "",
				"canonical": "MediaWiki"
			},
			"9": {
				"id": 9,
				"case": "first-letter",
				"*": "Discussion MediaWiki",
				"subpages": "",
				"canonical": "MediaWiki talk"
			},
			"10": {
				"id": 10,
				"case": "first-letter",
				"*": "Mod\u00e8le",
				"canonical": "Template"
			},
			"11": {
				"id": 11,
				"case": "first-letter",
				"*": "Discussion mod\u00e8le",
				"subpages": "",
				"canonical": "Template talk"
			},
			"12": {
				"id": 12,
				"case": "first-letter",
				"*": "Aide",
				"canonical": "Help"
			},
			"13": {
				"id": 13,
				"case": "first-letter",
				"*": "Discussion aide",
				"subpages": "",
				"canonical": "Help talk"
			},
			"14": {
				"id": 14,
				"case": "first-letter",
				"*": "Cat\u00e9gorie",
				"canonical": "Category"
			},
			"15": {
				"id": 15,
				"case": "first-letter",
				"*": "Discussion cat\u00e9gorie",
				"subpages": "",
				"canonical": "Category talk"
			},
			"_element": "ns"
		}
	}
}