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1.1       misho       1: <?xml version="1.0"?>
                      2: <!DOCTYPE test [
                      3: <!ELEMENT test (#PCDATA)>
                      4: <!ENTITY % xx "%zz;">
                      5: <!ENTITY % zz '<!ENTITY tricky "error-prone" >'>
                      6: <!ENTITY tricky "error-prone">
                      7: ]>
                      8: <test>This sample shows a error-prone method.</test>