<http://schema.org/description>
"\u50D5\u306E\u53D6\u308A\u6271\u3044\u65B9\u3092\u5206\u304B\u308B\u8AB0\u4E00\u4EBA\u3082\u3044\u306A\u3044"^^<http://www.w3.org/2001/XMLSchema#string>
<https://catfan.me/rye/p102808>