callback({
  "database_resource_url": "http://wedata.net/databases/USW",
  "created_at": "2011-02-26T21:32:08+09:00",
  "name": "BUM",
  "data": {
    "chat": "#b-u-m-room",
    "yomigana": "ばむ",
    "ustid": "7124315",
    "ustch": "b-u-m-room"
  },
  "updated_at": "2011-02-26T21:32:52+09:00",
  "created_by": "marl-0415",
  "resource_url": "http://wedata.net/items/46687?rev=67132"
})