<http://schema.org/headline>
"\u8272\u3063\u307D\u3044\u306F\u4F5C\u308C\u308B\uFF1F\u604B\u611B\u5FC3\u7406\u5B66\u304B\u3089\u307F\u308B\u30BB\u30AF\u30B7\u30FC\u306A\u5973\u6027"^^<http://www.w3.org/2001/XMLSchema#string>
<http://howcollect.jp/article/15477>