<http://schema.org/headline>
"\u300C\u534A\u5C0E\u4F53\u300D\u3063\u3066\uFF0C\u534A\u5206\u3060\u3051\u304C\u5C0E\u4F53\u306A\u306E\uFF1F\uFF1A\u65B0\u520A\u30D4\u30C3\u30AF\u30A2\u30C3\u30D7"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gihyo.jp/book/pickup/2009/0073>