<!DOCTYPE MEMO [ <!ELEMENT MEMO - - (HEAD, BODY, END)> <!ELEMENT HEAD - - (DATE, TO, SUBJECT)> <!ELEMENT DATE - - (#PCDATA)> <!ELEMENT TO - - (#PCDATA)> <!ELEMENT SUBJECT - - (#PCDATA)> <!ELEMENT BODY - - (PARA+)> <!ELEMENT PARA - - (#PCDATA)> <!ELEMENT END - - (CLOSING, SENDER)> <!ELEMENT CLOSING - - (#PCDATA)> <!ELEMENT SENDER - - (#PCDATA)> ]> <memo> <head> <date>Feb 29, 1997</date> <to>John Doe</to> <subject>Test Document</subject> </head> <body> <para>This is the first paragraph.</para> <para>This is the second.</para> <para>This is the last.</para> </body> <end> <closing>Sincerely,</closing> <sender>Jane Doe</sender> </end> </memo>