a-a a-b aaa aab aag aak aam aan aar aau ab- aba abb abg abk abm abn abr abu ag- aga agb agg agk agm agn agr agu aka akb akg akk akm akn akr aku ama amb amg amk amm amn amr amu an- ana anb ang ank anm ann anr anu ar- ara arb arg ark arm arn arr aru au- aua aub aug auk aum aun aur b-u baa bab bag bak bam ban bar bau bba bbb bbg bbk bbm bbn bbr bbu bga bgb bgg bgk bgm bgn bgr bgu bka bkb bkg bkk bkm bkn bkr bma bmb bmg bmk bmm bmn bmr bmu bna bnb bng bnk bnn bnr bnu bra brb brg brk brm brn brr bru bua bub bug buk bum bun bur buu gaa gab gag gak gam gan gar gau gba gbg gbk gbm gbn gbr gbu gga ggb ggg ggm ggn ggr ggu gka gkb gkm gkn gma gmb gmg gmm gmn gmr gna gnb gnm gnn gnr gnu gra grb grg grk grm grn grr gru gu- gua gub gug guk gum gun gur guu ka- kaa kab kag kak kam kan kar kau kba kbb kbk kbm kbn kbr kbu kga kgb kgm kgu kkb kkk kkm kkn kkr kku kma kmb kmg kmk kmm kmu kn- kna kng knk knm knn knr knu kra krg krk krn krr kru kub kug kuk kum kun kur kuu m-r maa mab mag mak mam man mar mau mba mbb mbg mbk mbm mbr mbu mga mgb mgk mgm mgn mgr mgu mka mkb mkg mkk mkm mkn mkr mku mma mmb mmg mmk mmm mmn mmr mmu mna mnb mng mnk mnm mnn mnr mnu mra mrb mrg mrk mrm mrn mrr mru mua mub mug muk mum mun mur muu naa nab nag nak nam nan nar nau nba nbb nbg nbk nbm nbn nbr nbu nga ngb ngg ngk ngm ngn ngu nka nkk nkm nkn nkr nku nma nmb nmg nmk nmm nmn nmr nmu nna nnb nng nnk nnm nnn nnu nra nrb nrg nrk nrm nrn nrr nru nua nub nug nuk num nun nur nuu ra- raa rab rag rak ram ran rar rau rba rbb rbg rbk rbm rbn rbr rbu rga rgb rgg rgk rgn rgr rkb rkg rkk rkm rku rma rmb rmg rmm rmn rmr rna rnb rng rnm rnn rnr rnu rra rrb rrg rrk rrm rrn rrr rru rua rub rug ruk rum run rur ruu ua- uaa uab uag uak uam uan uar uau uba ubb ubg ubk ubn ubr ubu uga ugb ugg ugk ugm ugn ugr ugu uka ukb ukk ukn ukr uku um- uma umb umg umm umn umr umu un- una unb ung unk unm unn unr unu ur- ura urb urg urk urm urn urr uru uua uug uum uun uur uuu