<http://schema.org/headline>
"\u82E5\u8FD4\u308A\u52B9\u679C\u306E\u30A2\u30B9\u30D1\u30E9\u3001\u30D3\u30BF\u30DF\u30F3\u6D41\u51FA\u304C\u5C11\u306A\u3044\u84B8\u3057\u7092\u3081\u304C\u25CE"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.jprime.jp/articles/-/7309>