public function listenP(IEvent $event, $response)
 {
     $expect = $event->getInt("number", 0) === 1 ? 'singular' : 'plural';
     if ($event->getStr($expect) !== $response) {
         $this->addTranslation($event->getStr("singular"), $response);
         $this->addTranslation($event->getStr("plural"), $response);
     }
 }