a-a a-b aaa aab aad aak aam aan aao aar aau ab- aba abb abd abk abm abn abo abr abu ad- ada adb add adk adm adn ado adr adu aka akb akd akk akm akn ako akr aku ama amb amd amk amm amn amo amr amu an- ana anb and ank anm ann ano anr anu aoa aob aod aok aom aon aoo aor aou ar- ara arb ard ark arm arn aro arr aru au- aua aub aud auk aum aun auo aur b-u baa bab bad bak bam ban bao bar bau bba bbb bbd bbk bbm bbn bbo bbr bbu bda bdb bdd bdk bdm bdo bdr bdu bka bkb bkk bkm bkn bko bkr bma bmb bmd bmk bmm bmn bmo bmr bmu bna bnb bnd bnk bnn bno bnr bnu boa bob bod bok bom bon boo bor bou bra brb brd brk brm brn bro brr bru bua bub bud buk bum bun buo bur buu daa dab dad dak dam dan dao dar dau dba dbb dbd dbk dbm dbn dbo dbr dbu dda ddb ddd ddk ddm ddn ddo ddr ddu dka dkb dkk dkm dko dkr dku dma dmb dmd dmk dmm dmn dmo dmr dmu dna dnb dnd dnk dnm dnn dno dnr doa dob dod dok dom don doo dor dou dra drb drd drk drm drn dro drr dru dua dub dud duk dum dun duo dur ka- kaa kab kad kak kam kan kao kar kau kba kbb kbd kbk kbm kbn kbo kbr kbu kda kdb kdk kdm kdo kdr kdu kkb kkk kkm kkn kkr kku kma kmb kmd kmk kmm kmo kmu kn- kna knd knk knm knn kno knr knu koa kob kod kok kom kon koo kor kou kra krd krk krn kro krr kru kub kud kuk kum kun kur kuu m-o m-r maa mab mad mak mam man mao mar mau mba mbb mbd mbk mbm mbo mbr mbu mda mdb mdd mdk mdm mdn mdo mdr mdu mka mkb mkd mkk mkm mkn mko mkr mku mma mmb mmd mmk mmm mmn mmo mmr mmu mna mnb mnk mnm mnn mno mnr mnu moa mob mod mok mom mon moo mor mou mra mrb mrd mrk mrm mrn mro mrr mru mua mub mud muk mum mun mur muu naa nab nad nak nam nan nao nar nau nba nbb nbd nbk nbm nbn nbo nbr nbu nda ndb ndd ndk ndm ndn ndo ndr ndu nka nkk nkm nkn nko nkr nku nma nmb nmd nmk nmm nmn nmo nmr nmu nna nnb nnk nnm nnn nno nnu no- noa nob nod nok nom non noo nor nou nra nrb nrd nrk nrm nrn nro nrr nru nua nub nud nuk num nun nuo nur nuu oaa oab oad oak oam oan oao oar oau ob- oba obb obd obk obm obn obo obr obu oda odb odd odm odn odo odr odu oka okb okd okk oko okr oku om- oma omb omd omm omn omo omr omu on- ona onb ond onk onn ono onr onu oo- ooa oob ood ook oom oon ooo oor or- ora orb ord ork orm orn oro orr oru ou- oua oud ouk oum oun ouo our ra- raa rab rad rak ram ran rao rar rau rba rbb rbd rbk rbm rbn rbo rbr rbu rda rdb rdd rdm rdn rdo rdr rdu rkb rkk rkm rko rku rma rmb rmd rmm rmn rmo rmr rna rnb rnd rnm rnn rno rnr rnu roa rob rod rok rom ron roo ror rou rra rrb rrd rrk rrm rrn rrr rru rua rub rud ruk rum run ruo rur ruu ua- uaa uab uad uak uam uan uao uar uau uba ubb ubk ubn ubo ubr ubu uda udb udd udk udm udn udo udr udu uka ukb ukk ukn ukr uku um- uma umb umd umm umn umo umr umu un- una unb und unk unm unn uno unr unu uoa uob uod uok uom uon uoo uor ur- ura urb urd urk urm urn uro urr uru uua uum uun uur uuu