1 <?xml version="1.0"?>

     2 <!-- Attribute uniqueness: prefixed and unprefixed attributes with same

     3      local name, with default namespace -->

     4 <foo xmlns:a="http://example.org/~wilbur"

     5      xmlns:b="http://example.org/~kipper"

     6      xmlns="http://example.org/~wilbur">

     7 

     8 <b:bar a:attr="1" attr="2"/>

     9 

    10 </foo>