属性:Schema type
"Schema type" is a predefined property that describes a type to distinguish a group of schemata and is provided by Semantic MediaWiki. Each type provides its own interpretation of syntax elements and application rules and can be expressed with the help of a validation schema. 此属性预先部署（或称特殊属性），并带有额外的管理权限，但可像其他用户定义属性一样使用。