<http://schema.org/headline>
"\u307F\u3093\u306A\u3084\u308A\u304C\u3061\uFF01\u52D8\u9055\u3044\u7709\u30E1\u30A4\u30AF\u306E\u304A\u76F4\u3057\u30DD\u30A4\u30F3\u30C8"^^<http://www.w3.org/2001/XMLSchema#string>
<http://howcollect.jp/article/3416>