callback({ "resource_url": "http://wedata.net/items/28248", "data": { "source": "retweet" }, "database_resource_url": "http://wedata.net/databases/TwitterSources", "created_by": "drry", "name": "Re-Tweet", "created_at": "2009-04-29T23:00:35+09:00", "updated_at": "2009-04-29T23:00:35+09:00" })