In primo piano a b c d e f g h i j k l m n o p q r s t u v w x y z Ordine alfabetico O Ongga’an Barat Ongga’an Timur Opelan Opelan Opelan Barat Opelan Timur Orooroombo Olaalung Orooroombo Oro-oroombo Orooroombo 2 3 4