1 <?xml version="1.0"?>

     2 <!DOCTYPE doc [

     3 <!ELEMENT doc (#PCDATA)>

     4 <!ENTITY % e SYSTEM "something">

     5 %e;

     6 <!ENTITY not "not">

     7 <!ENTITY me "me">

     8 ]>

     9 <doc a="do &not; replace me">and &me; neither</doc>