a-a a-b aaa aab aae aak aam aao aau ab- aba abb abe abk abm abo abu aea aeb aee aek aem aeo aeu aka akb ake akk akm ako aku ama amb ame amk amm amo amu aoa aob aoe aok aom aoo aou au- aua aub aue auk aum auo b-u baa bab bae bak bam bao bau bba bbb bbe bbk bbm bbo bbu be- bea beb bee bek bem beo beu bka bkb bke bkk bkm bko bma bmb bme bmk bmm bmo bmu boa bob boe bok bom boo bou bua bub bue buk bum buo buu eaa eab eae eak eam eao eau eba ebb ebe ebk ebm ebo ebu eea eeb eee eek eem eeo eka ekb eke eko eku em- ema emb eme emk emm emo emu eo- eoa eob eoe eok eom eoo eou eu- eua eub eue ka- kaa kab kae kak kam kao kau kba kbb kbe kbk kbm kbo kbu ke- kea keb kee kek kem keo kkb kke kkk kkm kku kma kmb kme kmk kmm kmo kmu koa kob koe kok kom koo kou kub kue kuk kum kuu m-o maa mab mae mak mam mao mau mba mbb mbe mbk mbm mbo mbu mea meb mee mek mem meo meu mka mkb mke mkk mkm mko mku mma mmb mme mmk mmm mmo mmu moa mob moe mok mom moo mou mua mub mue muk mum muu oaa oab oae oak oam oao oau ob- oba obb obe obk obm obo obu oea oeb oee oem oeo oka okb oke okk oko oku om- oma omb ome omm omo omu oo- ooa oob ook oom ooo ou- oua oue ouk oum ouo ua- uaa uab uae uak uam uao uau uba ubb ube ubk ubo ubu uea ueb uee uem uka ukb uke ukk uku um- uma umb ume umm umo umu uoa uob uoe uok uom uoo uua uue uum uuu