17db96d56Sopenharmony_ci<!DOCTYPE doc [
27db96d56Sopenharmony_ci<!ATTLIST doc attrExtEnt CDATA #IMPLIED>
37db96d56Sopenharmony_ci<!ENTITY ent1 "Hello">
47db96d56Sopenharmony_ci<!ENTITY ent2 SYSTEM "world.txt">
57db96d56Sopenharmony_ci<!ENTITY entExt SYSTEM "earth.gif" NDATA gif>
67db96d56Sopenharmony_ci<!NOTATION gif SYSTEM "viewgif.exe">
77db96d56Sopenharmony_ci]>
87db96d56Sopenharmony_ci<doc attrExtEnt="entExt">
97db96d56Sopenharmony_ci   &ent1;, &ent2;!
107db96d56Sopenharmony_ci</doc>
117db96d56Sopenharmony_ci
127db96d56Sopenharmony_ci<!-- Let world.txt contain "world" (excluding the quotes) -->
13