<http://schema.org/description>
"\u5BDD\u5BA4\u4EC0\u4E48\u7684\u5C31\u90A3\u4E48\u56DE\u4E8B\u5427 \u6BD5\u4E1A\u5C31\u6563 over"^^<http://www.w3.org/2001/XMLSchema#string>
<https://catfan.me/gogohang/p217787>