callback({
  "name": "twitter-timeline",
  "updated_at": "2008-12-17T20:57:43+09:00",
  "resource_url": "http:\/\/wedata.net\/items\/25991",
  "created_by": "replore",
  "database_resource_url": "http:\/\/wedata.net\/databases\/Multi%20Requester",
  "data": {
    "name": "twitter-timeline",
    "url": "http:\/\/twitter.com\/home",
    "description": "twitter\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3092\u898b\u308b",
    "xpath": "id(\"content\")\/div[@class=\"wrapper\"]\/descendant::*[self::div[@id=\"currently\"] or self::div[@class=\"tab\"]]"
  },
  "created_at": "2008-12-08T17:24:06+09:00"
})