anchor.diff:  OBJECTLIST;
   TRIPLE;
   NOTEXISTS;
  -CONDITIONAL_OR_EXPRESSION;
  -CONDITIONAL_AND_EXPRESSION;
   }
   
   @header {
  
positive.code: propertyListNotEmptyPath
      : ( verbPath | verbSimple ) objectList ( SEMICOLON ( ( verbPath | verbSimple ) objectList )? )*
      ;
      
  propertyListPath
      : propertyListNotEmpty?
      ;
  
negative.code: BINDINGVALUE;
  TRIPLESTEMPLATE;
  GROUPGRAPHPATTERN;
  ARGLIST;
  EXPRESSIONLIST;
  CONSTRUCTTRIPLES;
  