<http://schema.org/headline>
"\u30CC\u30FC\u30C7\u30A3\u30FC\u30D9\u30FC\u30B8\u30E5\u3067\u3001\u5927\u4EBA\u30CA\u30C1\u30E5\u30E9\u30EB\u306A\u30E2\u30C6\u30CD\u30A4\u30EB\u3002"^^<http://www.w3.org/2001/XMLSchema#string>
<http://itnail.jp/articles/PnYWRgC4>