public function evalSup( core_kernel_classes_Literal $first,  core_kernel_classes_Literal $second)
    {
        $returnValue = (bool) false;

        
         if($first instanceof core_kernel_classes_Literal && $second instanceof core_kernel_classes_Literal)  {
             $returnValue = $first->literal > $second->literal;       
         }
        

        return (bool) $returnValue;
    }