a-a a-b a-c aaa aab aac aag aah aam aan aau ab- aba abb abc abg abh abm abn abu ac- aca acb acc acg ach acm acn acu ag- aga agb agc agg agh agm agn agu aha ahb ahc ahg ahh ahm ahn ahu ama amb amc amg amh amm amn amu an- ana anb anc ang anh anm ann anu au- aua aub auc aug auh aum aun b-u baa bab bac bag bah bam ban bau bba bbb bbc bbg bbh bbm bbn bbu bca bcb bcc bcg bch bcm bcn bcu bga bgb bgc bgg bgh bgm bgn bgu bha bhb bhc bhg bhh bhm bhu bma bmb bmc bmg bmh bmm bmn bmu bna bnb bnc bng bnn bnu bua bub buc bug buh bum bun buu c-- caa cab cac cag cah cam can cau cba cbb cbc cbg cbh cbm cbn cbu cca ccb ccc ccg cch ccm ccn ccu cga cgb cgc cgg cgh cgm cgn cgu ch- cha chb chc chg chh chm chn chu cma cmb cmc cmg cmh cmm cmn cmu cn- cna cnb cnc cng cnh cnm cnn cnu cua cub cuc cug cuh cum cun cuu gaa gab gac gag gah gam gan gau gba gbc gbg gbh gbm gbn gbu gca gcb gcc gcg gch gcm gcn gcu gga ggb ggc ggg ggh ggm ggn ggu gha ghb ghc ghg ghh ghn gma gmb gmc gmg gmh gmm gmn gna gnb gnc gnm gnn gnu gu- gua gub guc gug gum gun guu haa hab hac hag hah ham han hau hba hbb hbc hbg hbh hbm hbn hbu hca hcb hcc hcg hch hcm hcn hga hgb hgc hgg hgh hgm hgn hgu hha hhb hhc hhg hhh hhm hhn hhu hma hmb hmc hmg hmh hmm hmu hna hnb hnc hng hnh hnn hnu hua hub huc hug huh hum hun huu maa mab mac mag mah mam man mau mba mbb mbc mbg mbh mbm mbu mc- mca mcb mcc mcg mch mcm mcn mcu mga mgb mgc mgh mgm mgn mgu mha mhc mhg mhh mhm mhn mhu mma mmb mmc mmg mmh mmm mmn mmu mna mnb mnc mng mnm mnn mnu mua mub muc mug muh mum mun muu naa nab nac nag nah nam nan nau nba nbb nbc nbg nbm nbn nbu nca ncb ncc ncg nch ncm ncn ncu nga ngb ngc ngg ngh ngm ngn ngu nha nhb nhc nhg nhh nhm nhn nhu nma nmb nmc nmg nmh nmm nmn nmu nna nnb nnc nng nnh nnm nnn nnu nua nub nuc nug nuh num nun nuu ua- uaa uab uac uag uah uam uan uau uba ubb ubc ubg ubh ubn ubu uca ucb ucc ucg uch ucm ucn ucu uga ugb ugc ugg ugh ugm ugn ugu uha uhb uhc uhh uhm uhu um- uma umb umc umg umh umm umn umu un- una unb unc ung unh unm unn unu uua uuc uug uum uun uuu