1.1 misho 1: <!ENTITY % a SYSTEM "http://example.org/a/a.dtd"> 2: %a; 3: <!ENTITY % c SYSTEM "http://example.org/c/c.dtd"> 4: %c; 5: <!ENTITY % b SYSTEM "http://example.org/b/b.dtd"> 6: %b; 7: <!ELEMENT acb (a, c, b)>