public function getCopyright()
    {
        /** @var Collection $copyright */
        $copyright = $this->getTags()->get('copyright', new Collection());
        if ($copyright->count() !== 0) {
            return $copyright;
        }

        $inheritedElement = $this->getInheritedElement();
        if ($inheritedElement) {
            return $inheritedElement->getCopyright();
        }

        return new Collection();
    }