How would that follow if they are in common use?
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
They're not in common use because they're banned.
They're allowed to be banned because they're not in common use.
get it?