namespaces in xml造句

Originally, the namespace name could match the syntax of any non-empty URI reference, but the use of relative URI references was deprecated by the W3C . A separate W3C specification for namespaces in XML 1.1 permits internationalized resource identifier ( IRI ) references to serve as the basis for namespace names in addition to URI references.
It's difficult to find namespaces in xml in a sentence. 用namespaces in xml造句挺难的