callback({ "resource_url": "http://wedata.net/items/853", "data": { "description": "b", "name": "a", "xpath": "//", "value": "1" }, "database_resource_url": "http://wedata.net/databases/Wedata%20API%20Example", "created_by": "mattn", "name": "TEST", "created_at": "2008-04-21T13:59:40+09:00", "updated_at": "2008-04-21T13:59:40+09:00" })