1    <!ELEMENT   MusicCatalog    (Item*)> 
2    <!ATTLIST   survey   
3                xmlns   CDATA   #FIXED  "http://www.MusicCatalog.com" 
4    > 
5     
6    <!ELEMENT   Item        (Artist, Title, Year, Member*)> 
7     
8    <!ATTLIST   Item 
9                media       ( vinyl | cd | tape ) #REQUIRED> 
10                        
11   <!ELEMENT   Artist      (#PCDATA)> 
12   <!ELEMENT   Title       (#PCDATA)> 
13   <!ELEMENT   Year        (#PCDATA)> 
14   <!ELEMENT   Member      (#PCDATA)> 
15