<http://schema.org/headline>
"\u7B2C3\u56DE\u3000Amazon Elastic MapReduce\u3092\u5B66\u3076\uFF08\u524D\u7DE8\uFF09"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gihyo.jp/admin/serial/01/cosmi/0003>