Namespace for subject and object types of semantic properties on 101wiki
Semantic properties are described in terms Property:hasDomain and Propery:hasRange, i.e., the domain and range of properties. We use the term 'type' rather than 'namespace' here because the object of a semantic property could be a primitive value (see Type:String) or a URI (see Type:URI). Obviously, the subject of any property on 101wiki must be a page on 101wiki. There is (there should be) a type for each namespace. There is the special Type:Any to proxy for the union of all namespaces.
101wiki's type of pages in any namespace
101wiki's type of URIs
The domain of a 101wiki property