sgmls: SGML error at test019.sgm, line 45 at "o":
       Attribute name omission requires "SHORTTAG YES"
sgmls: SGML error at test019.sgm, line 46 at "o":
       Attribute specification omitted for "NAME": requires markup minimization
       Element structure: DOC
sgmls: SGML error at test019.sgm, line 48 at "f":
       Undelimited attribute value requires "SHORTTAG YES"
       Element structure: DOC
sgmls: SGML error at test019.sgm, line 48 at "/":
       Net-enabling start tag requires "SHORTTAG YES"
       Element structure: DOC
sgmls: SGML error at test019.sgm, line 49 at "<":
       Unclosed start or end tag requires "SHORTTAG YES"
       Element structure: DOC
sgmls: SGML error at test019.sgm, line 49 at "<":
       Unclosed start or end tag requires "SHORTTAG YES"
       Element structure: DOC DOC
