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a-ii aaaa aaab aaaf aaai aaba aabb aabi aafa aafb aaff aafi aaib aaii abaa abab abaf abai abb- abba abbb abbi abff abia abib afaa affa affi afia afib afif aiai aiba aiff aiia aiib ba-i baaa baaf baba babb babi baff baia baib bbbb biaf biba bibb bibi bifa biff bifi faaa faba fabi fafa faff fafi ffff ffii fiaa fiaf fiba fifa fiff fifi fiii iaaa iaai iaba iaff iaia ibfi ibia ifaa ifbb iifa iiii

-aaa- a-fib a-iii aaaai aabaa aabba aaiib abaab ababa abaia abbai abbia abfab affif afifa aiaff aiaia babai babia baffa baffi bafia baiba bbiab bbiaf bibia biffa biffi fabfi fafia fibia ibaba ibafa ibiai if-- ifafa iiiii

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