<http://schema.org/headline>
"\u7B2C5\u56DE\u3000\u5B9F\u4E16\u754C\u30B3\u30F3\u30C6\u30AD\u30B9\u30C8\u3068\u8A08\u7B97\u6A5F\u30B3\u30F3\u30C6\u30AD\u30B9\u30C8\uFF1A\u30C7\u30FC\u30BF\u767A\u898B\u968A"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gihyo.jp/dev/serial/01/data-discovery/0005>