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<?php
function array_rot(&$butterbrot) {
    $rosenrot = array_shift($butterbrot);
    array_push($butterbrot, $rosenrot);
}
function mutate($hydra, $head) {
    if (count($hydra) < 1) {
        yield [$head];
    }
    foreach($hydra as $branch) {
      $branch[] = $head;
      for ($i = 0; $i < count($branch); ++$i) {
        array_rot($branch);
        yield $branch;
      }
    }
}
class YOBAMaster {
    private $data = [];    
    public function __get($name) {
        $tmp = [];
        foreach (mutate($this->data, $name) as $variant) {
            $tmp[] = $variant;
        }
        $this->data = $tmp;
        return $this;
    }
    public function say() {
        foreach ($this->data as $item) {
            echo implode(' ', $item) . PHP_EOL;
        }
        $this->data = [];
    }
}
$master = new YOBAmaster();
$master->ALLO->YOBA->ETO->TI->say();
$master->YOBI->NET->DOMA->say();