` ::Probably not.  While it is clear that Mazandarani and Persian are both used extensively in communication between people in Mazandaran, speaking English or German to each other does not appear to be quite as prevalent.  For example, it is safe to say that most Americans, especially those who grew up here, know how to speak Pig Latin, but the fact that they do not regularly use Pig Latin in communication prevents Pig Latin from being considered a ``main language.``   `