a-a a-b aaa aab aad aak aam aan aau ab- aba abb abd abk abm abn abu ad- ada adb add adk adm adn adu aka akb akd akk akm akn aku ama amb amd amk amm amn amu an- ana anb and ank anm ann anu au- aua aub aud auk aum aun b-u baa bab bad bak bam ban bau bba bbb bbd bbk bbm bbn bbu bda bdb bdd bdk bdm bdu bka bkb bkk bkm bkn bma bmb bmd bmk bmm bmn bmu bna bnb bnd bnk bnn bnu bua bub bud buk bum bun buu daa dab dad dak dam dan dau dba dbb dbd dbk dbm dbn dbu dda ddb ddd ddk ddm ddn ddu dka dkb dkk dkm dku dma dmb dmd dmk dmm dmn dmu dna dnb dnd dnk dnm dnn dua dub dud duk dum dun ka- kaa kab kad kak kam kan kau kba kbb kbd kbk kbm kbn kbu kda kdb kdk kdm kdu kkb kkk kkm kkn kku kma kmb kmd kmk kmm kmu kn- kna knd knk knm knn knu kub kud kuk kum kun kuu maa mab mad mak mam man mau mba mbb mbd mbk mbm mbu mda mdb mdd mdk mdm mdn mdu mka mkb mkd mkk mkm mkn mku mma mmb mmd mmk mmm mmn mmu mna mnb mnk mnm mnn mnu mua mub mud muk mum mun muu naa nab nad nak nam nan nau nba nbb nbd nbk nbm nbn nbu nda ndb ndd ndk ndm ndn ndu nka nkk nkm nkn nku nma nmb nmd nmk nmm nmn nmu nna nnb nnk nnm nnn nnu nua nub nud nuk num nun nuu ua- uaa uab uad uak uam uan uau uba ubb ubk ubn ubu uda udb udd udk udm udn udu uka ukb ukk ukn uku um- uma umb umd umm umn umu un- una unb und unk unm unn unu uua uum uun uuu