host_danube/danube/page/default_prices/default_prices.php

<?php
class default_prices extends SYSTEM\PAGE\Page {
    public function html(){
        $vars = \SYSTEM\PAGE\text::tag('danube');
        return SYSTEM\PAGE\replace::replaceFile((new PPAGE('default_prices/tpl/prices.tpl'))->SERVERPATH(), $vars);
    }
}