callback({
  "database_resource_url": "http://wedata.net/databases/RerankEverything",
  "created_at": "2011-05-24T22:18:21+09:00",
  "name": "www.google.co.jp",
  "resource_url": "http://wedata.net/items/53965?rev=77820",
  "data": {
    "path": "//div[contains(concat(' ',normalize-space(@class),' '), ' med ')]/div/div/ol/li",
    "name": "www.google.co.jp",
    "url": "http://www.google.co.jp/search*"
  },
  "updated_at": "2012-04-18T11:44:54+09:00",
  "created_by": "tyamamot"
})