<http://schema.org/headline>
"\u4ED5\u4E0A\u304C\u308A\u304C\u5909\u308F\u308B\uFF01\u30E1\u30A4\u30AF\u6642\u306E\u300C\u93E1\u306E\u52B9\u679C\u7684\u306A\u4F7F\u3044\u65B9\u300D"^^<http://www.w3.org/2001/XMLSchema#string>
<http://howcollect.jp/article/10419>