[
  { "text" : "Root 1", "children" : true },
  { "text" : "Root 2", "children" : true },
  { "text" : "Root 3", "children" : true },
  { "text" : "Root 4", "children" : true },
  { "text" : "Root 5", "children" : true },
  { "text" : "Root 6", "children" : false }
]