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|  |  | 
|  | <!ENTITY % common SYSTEM "common.dtd"> | 
|  | %common; | 
|  |  | 
|  | <!-- <sitemap> is the root element --> | 
|  | <!ELEMENT sitemap (title, summary?, seealso*, category*)> | 
|  |  | 
|  | <!ATTLIST sitemap metafile CDATA  #REQUIRED | 
|  | upgrade  CDATA  #IMPLIED | 
|  | > | 
|  |  | 
|  | <!-- <indexpage> is another root element --> | 
|  | <!ELEMENT indexpage (parentdocument, title, category*)> | 
|  |  | 
|  | <!ATTLIST indexpage metafile CDATA  #REQUIRED | 
|  | upgrade  CDATA  #IMPLIED | 
|  | > | 
|  |  | 
|  | <!ELEMENT category (title, page*)> | 
|  | <!ATTLIST category id ID #IMPLIED> | 
|  |  | 
|  | <!ELEMENT page (#PCDATA)> | 
|  | <!ATTLIST page href CDATA #IMPLIED | 
|  | separate (yes | no) "no" > |