{ identifier: 'name',
  items: [
	{ name:'Africa', type:'continent', children:[
		{ name:'Egypt', type:'country' }, 
		{ name:'Kenya', type:'country', children:[
			{ name:'Nairobi', type:'city' },
			{ name:'Mombasa', type:'city' } ]
		},
		{ name:'Sudan', type:'country', children:
			{ name:'Khartoum', type:'city' } 
		} ]
	},
	{ name:'Asia', type:'continent', children:[
		{ name:'China', type:'country' },
		{ name:'India', type:'country' },
		{ name:'Russia', type:'country' },
		{ name:'Mongolia', type:'country' } ]
	},
	{ name:'Australia', type:'continent', population:'21 million', children:
		{ name:'Commonwealth of Australia', type:'country', population:'21 million'}
	},
	{ name:'Europe', type:'continent', children:[
		{ name:'Germany', type:'country' },
		{ name:'France', type:'country' },
		{ name:'Spain', type:'country' },
		{ name:'Italy', type:'country' } ]
	},
	{ name:'North America', type:'continent', children:[
		{ name:'Mexico', type:'country',  population:'108 million', area:'1,972,550 sq km', children:[
			{ name:'Mexico City', type:'city', population:'19 million', timezone:'-6 UTC'},
			{ name:'Guadalajara', type:'city', population:'4 million', timezone:'-6 UTC' } ]
		},
		{ name:'Canada', type:'country',  population:'33 million', area:'9,984,670 sq km', children:[
			{ name:'Ottawa', type:'city', population:'0.9 million', timezone:'-5 UTC'},
			{ name:'Toronto', type:'city', population:'2.5 million', timezone:'-5 UTC' }]
		},
		{ name:'United States of America', type:'country' } ]
	},
	{ name:'South America', type:'continent', children:[
		{ name:'Brazil', type:'country', population:'186 million' },
		{ name:'Argentina', type:'country', population:'40 million' } ]
	} ]
}

