<http://schema.org/description>
"\u542C\u5230\u559C\u6B22\u7684\u6B4C\u5C31\u8981\u5355\u66F2\u5FAA\u73AFn(*\u2267\u25BD\u2266*)n"^^<http://www.w3.org/2001/XMLSchema#string>
<https://catfan.me/what_the_fuck/p171108>