/**
* Parse single exercise
* @param SimpleXMLElement $Exercise
*/
protected function parseSingleExercise(SimpleXMLElement &$Exercise)
{
$Parser = new ParserXMLpolarSingle('', $Exercise);
$Parser->parse();
if ($Parser->failed()) {
$this->addErrors($Parser->getErrors());
} else {
$this->addObject($Parser->object());
}
}
