private function addRandomUL(\DOMElement $element, $maxItems = 11, $maxLength = 4)
{
$num = mt_rand(1, $maxItems);
$ul = $element->ownerDocument->createElement(static::UL_TAG);
for ($i = 0; $i < $num; $i++) {
$li = $element->ownerDocument->createElement(static::LI_TAG);
$li->textContent = $this->generator->sentence(mt_rand(1, $maxLength));
$ul->appendChild($li);
}
$element->appendChild($ul);
}