public function analyze()
{
// one void in the sequence
$this->atomIs('Void')->hasIn('ELEMENT')->isNot('rank', 0);
$this->prepareQuery();
// if the void is only one, we must check if this is a condition
$this->atomIs('Void')->is('rank', 0)->inIs('ELEMENT')->isNot('count', 1)->back('first');
$this->prepareQuery();
}