<?xml  version="1.0"?>
<!-- validity test for Production 58-->
<!DOCTYPE test
 [
 <!ELEMENT test ANY>
 <!ELEMENT blob (#PCDATA)>
 <!NOTATION base64 SYSTEM "mimecode">
 <!NOTATION uuencode SYSTEM "uudecode">
 <!NOTATION raw SYSTEM "bin/cat">
 <!ATTLIST blob content-encoding NOTATION (base64|uuencode|raw) #REQUIRED>
 ]>
 <test>
<blob content-encoding="base64"></blob>
The attribute values of type NOTATION matches one of the notation names included in the declaration;
all notation names in the declaration have been declared
</test>