<http://schema.org/headline>
"\u300C\u82E6\u3057\u3044\u604B\u611B\u3070\u304B\u308A\u300D\u306A\u5973\u6027\u5FC5\u898B\uFF01\u5F31\u70B9\u3092\u898B\u629C\u304F\u6027\u683C\u8A3A\u65AD"^^<http://www.w3.org/2001/XMLSchema#string>
<http://howcollect.jp/article/4810>