public function lastName()
{
$determinator = static::numberBetween(0, 25);
if ($determinator === 0) {
$lastName = static::randomElement(static::$longLastNames);
} elseif ($determinator <= 10) {
$lastName = static::randomElement(static::$commonDutchLastNames);
} elseif ($determinator <= 15) {
$lastName = static::randomElement(static::$commonForeignLastNames);
} else {
$lastName = static::randomElement(static::$dutchLastNames);
}
return $lastName;
}