<http://schema.org/description>
"\u5F88\u4F69\u670D\u90A3\u4E9B\u957F\u5F97\u6F02\u4EAE\u753B\u753B\u53C8\u753B\u7684\u597D\u7684\u5973\u5B69\u5B50\u3002"^^<http://www.w3.org/2001/XMLSchema#string>
<https://catfan.me/cubed/p295604>