{
  identifier: 'name',
  label: 'name',
  items: [
    {
	name: 'Object-Oriented',
	type: 'category',
	children: [
	  { name: 'JavaScript', type: 'language'},
	  { name: 'Java', type: 'language'},
	  { name: 'Ruby', type: 'language'}
	]
    },
    {
	name: 'Imperative',
	type: 'category',
	children: [
	  { name: 'C', type: 'language'},
	  { name: 'Fortran', type: 'language'},
	  { name: 'BASIC', type: 'language'}
	]
    },
    {
	name: 'Functional',
	type: 'category',
	children: [
	  { name: 'Lisp', type: 'language'},
	  { name: 'Erlang', type: 'language'},
	  { name: 'Scheme', type: 'language'}
	]
    }
  ]
}