General Parsed Entities Work

When I first started in XML... general parsed entities were one of the friendlier bits
Reasonably simple declaration and application I declared entities in the DTD and used them in the document. Life was simple and good.
Mostly painless limitations Entityish well-formedness was easy enough to cope with, though it damped some crazy ideas. External entities could even be in encodings different from the one used in the main document.
Polite and dull General parsed entities lack the perverse capabilities of their parameter entity cousins (XHTML Modularization, anyone?) and the opaque blankness of unparsed entities.