1.1 ! misho 1: <!DOCTYPE doc [ ! 2: <!ELEMENT doc ((a | b)* , c+, a, b?, c, a?)> ! 3: <!ELEMENT a EMPTY> ! 4: <!ELEMENT b (#PCDATA)> ! 5: <!ELEMENT c (#PCDATA)> ! 6: ]> ! 7: <doc><a/><b/><a/><c/><c/><a/></doc>