AN ACT GRANTING THE NATIONAL COMMISSION ON INDIGENOUS PEOPLES (NCIP) AN ADDITIONAL TEN (10) YEARS WITHIN WHICH TO TAKE APPROPRIATE LEGAL ACTION FOR THE CANCELLATION OF OFFICIALLY DOCUMENTED TITLES WHICH WERE ACQUIRED ILLEGALLY, AS PROVIDED UNDER SECTION 64 OF REPUBLIC ACT NO. 8371 OTHERWISE KNOWN AS AN ACT TO RECOGNIZE, PROTECT AND PROMOTE THE RIGHTS OF INDIGENOUS CULTURAL COMMUNITIES/ INDIGENOUS PEOPLES, CREATING THE NATIONAL COMMISSION ON INDIGENOUS PEOPLE ESTABLISHING IMPLEMENTING MECHANISMS, APPROPRIATING FUNDS THEREFOR, AND FOR OTHER PURPOSES