a-a a-b aaa aab aad aak aam aan aar aau ab- aba abb abd abk abm abn abr abu ad- ada adb add adk adm adn adr adu aka akb akd akk akm akn akr aku ama amb amd amk amm amn amr amu an- ana anb and ank anm ann anr anu ar- ara arb ard ark arm arn arr aru au- aua aub aud auk aum aun aur b-u baa bab bad bak bam ban bar bau bba bbb bbd bbk bbm bbn bbr bbu bda bdb bdd bdk bdm bdr bdu bka bkb bkk bkm bkn bkr bma bmb bmd bmk bmm bmn bmr bmu bna bnb bnd bnk bnn bnr bnu bra brb brd brk brm brn brr bru bua bub bud buk bum bun bur buu daa dab dad dak dam dan dar dau dba dbb dbd dbk dbm dbn dbr dbu dda ddb ddd ddk ddm ddn ddr ddu dka dkb dkk dkm dkr dku dma dmb dmd dmk dmm dmn dmr dmu dna dnb dnd dnk dnm dnn dnr dra drb drd drk drm drn drr dru dua dub dud duk dum dun dur ka- kaa kab kad kak kam kan kar kau kba kbb kbd kbk kbm kbn kbr kbu kda kdb kdk kdm kdr kdu kkb kkk kkm kkn kkr kku kma kmb kmd kmk kmm kmu kn- kna knd knk knm knn knr knu kra krd krk krn krr kru kub kud kuk kum kun kur kuu m-r maa mab mad mak mam man mar mau mba mbb mbd mbk mbm mbr mbu mda mdb mdd mdk mdm mdn mdr mdu mka mkb mkd mkk mkm mkn mkr mku mma mmb mmd mmk mmm mmn mmr mmu mna mnb mnk mnm mnn mnr mnu mra mrb mrd mrk mrm mrn mrr mru mua mub mud muk mum mun mur muu naa nab nad nak nam nan nar nau nba nbb nbd nbk nbm nbn nbr nbu nda ndb ndd ndk ndm ndn ndr ndu nka nkk nkm nkn nkr nku nma nmb nmd nmk nmm nmn nmr nmu nna nnb nnk nnm nnn nnu nra nrb nrd nrk nrm nrn nrr nru nua nub nud nuk num nun nur nuu ra- raa rab rad rak ram ran rar rau rba rbb rbd rbk rbm rbn rbr rbu rda rdb rdd rdm rdn rdr rdu rkb rkk rkm rku rma rmb rmd rmm rmn rmr rna rnb rnd rnm rnn rnr rnu rra rrb rrd rrk rrm rrn rrr rru rua rub rud ruk rum run rur ruu ua- uaa uab uad uak uam uan uar uau uba ubb ubk ubn ubr ubu uda udb udd udk udm udn udr udu uka ukb ukk ukn ukr uku um- uma umb umd umm umn umr umu un- una unb und unk unm unn unr unu ur- ura urb urd urk urm urn urr uru uua uum uun uur uuu