[{
	"id":1,
	"text":"Foods",
	"children":[{
		"id":2,
		"text":"Fruits",
		"state":"closed",
		"children":[{
			"id":21,
			"text":"apple"
		},{
			"id":22,
			"text":"orange"
		}]
	},{
		"id":3,
		"text":"Vegetables",
		"state":"open",
		"children":[{
			"id":31,
			"text":"tomato"
		},{
			"id":32,
			"text":"carrot"
		},{
			"id":33,
			"text":"cabbage"
		},{
			"id":34,
			"text":"potato"
		},{
			"id":35,
			"text":"lettuce"
		}]
	}]
}]