<http://schema.org/headline>
"\u30B6\u30E9\u30C3\u3068\u8F9B\u53E3\u3002\u30EC\u30B6\u30FC\u30CD\u30A4\u30EB\u3067\u5927\u4EBA\u3063\u307D\u3044\u6307\u5148\u306B\u3002"^^<http://www.w3.org/2001/XMLSchema#string>
<http://itnail.jp/articles/3voOWQhR>