Property:Has type
"Has type" is a predefined property that describes the datatype of a property and is provided by Semantic MediaWiki. This property is pre-deployed (also known as special property) and comes with additional administrative privileges but can be used just like any other user-defined property.
This is the page of special property Has type. It lists all properties using this special property. See the help page Special property Has type for further information. SMW:Property:Has_type