1 <!--Inability to resolve a notation should not be reported as an error-->

     2 <!DOCTYPE doc

     3 [

     4 <!ELEMENT doc EMPTY>

     5 <!NOTATION not1 SYSTEM "a%a&b&#0<!ELEMENT<!--<?</>?>/\''">

     6 <!NOTATION not2 SYSTEM 'a

     7 	b"""'>

     8 <!NOTATION not3 SYSTEM "">

     9 <!NOTATION not4 SYSTEM ''>

    10 ]>

    11 <doc/>