a-ii aaaa aaab aaaf aaai aaal aaba aabb aabi aabl aafa aafb aaff aafi aafl aaib aaii aala aali aall aalo aaoo abaa abab abaf abai abal abb- abba abbb abbi abbo abff abia abib abil abla ablo aboa abob abof abol aboo afaa afao affa affi affo afia afib afif afil afla afoa afol afoo aiai aiba aibl aibo aiff aifl aiia aiib aila aili aioi alaa alai alal alao alb- alba albi albo alfa alfi ali- alia alib alif alii alil alio all- alla alli alll allo aloa alof aloi alol aloo aoba aola ba-i baaa baaf baal baba babb babi babo baff bafo baia baib bail baio bala balf bali ball balo baol bbbb bblb bffl biaf bial biao biba bibb bibi bibl bibo bifa biff bifi bila bili bill bilo bio- bioi biol blaa blab blio blob bloo boab boai boal boba bobb bobi bobo bofa boff boi- boii boil bola boli boll bolo boob boof bool faaa faba fabi fabo fafa faff fafi fafo fail faio fala fali fall falo fbla ffff ffii fiaa fiaf fial fiba fifa fiff fifi fifo fiii fiil fila fili fill filo flab flao flia flii flob floo foaf foal foba fofo foia foil fola foli foll folo foof fool iaaa iaai iaal iaba iaff iafl iaia iala iall ibfi ibia ifaa ifao ifbb ifil ifla iifa iiii iiio iila iioi iioo ilal ilia ilio ill- illa illi illo iloo ioba iobi ioii ioio iola iolo ioof iooi iooo laaa laal laba labi labo lafb laff laia lail lala lali lall lalo lbia liao liba libo lifa liff lifl lifo liia liii lila lilb lili lill lilo lio- llao llll lloa lloo loaf lob- loba lobb lobi lobo lofa loff lofi loif lola loli loll lolo loob loof lool oafo oall obai obal obba obbo obia obla oboi obol off- offa offo ofla oiba oiii oila olaf olba olbo olfa olia olib olio olla olli ollo olof ooaa ooba oobi ooff ooia oola oolo oooo