Occurs in Schema Tutorial examples:
Just one element from any namespace
Arbitrary number of elements from any namespace
Exact number of elements from any namespace
Elements from namespace other than target namespace (which is not null)
Elements from namespace other than target namespace (which is null)
Importing schema and processContents "strict"
Importing schema and processContents "lax"
Importing schema and processContents "skip"
Extending schema
Error in restriction - namespaces in wildcards
Element from any
The wildcard "xsd:any" and inclusions