<http://schema.org/headline>
"\u6D41\u884C\u00D7\u5973\u6027\u3089\u3057\u3055\u3092\u53F6\u3048\u308B\u300C\u30B0\u30EC\u30FC\u30B8\u30E5\u30CD\u30A4\u30EB\u300D\u3067\u5927\u4EBA\u306E\u307B\u3081\u3089\u308C\u6307\u5148\u3092\u2661"^^<http://www.w3.org/2001/XMLSchema#string>
<http://itnail.jp/articles/nLIX3>