anchor.diff:      ;
   
   objectList
  -    : graphNode ( COMMA graphNode )* -> ^(OBJECTLIST graphNode+)
  +    : graphNode ( COMMA graphNode )* -> ^(OBJECT graphNode+)
       ;
   
   verb
  
positive.code: CONSTRUCTTRIPLES;
  PROPERTYLIST;
  COLLECTION;
  BLANKNODEPROPERTYLIST;
  OBJECTLIST;
  TRIPLE;
  NOTEXISTS;
  }
  
  
negative.code: 	
  triplesNode
      : OPEN_BRACE graphNode+ CLOSE_BRACE -> ^(COLLECTION graphNode+)
      | OPEN_SQUARE_BRACKET propertyListNotEmpty CLOSE_SQUARE_BRACKET -> BLANKNODE propertyListNotEmpty
      ;
  
  graphNode
  