-ey a-a a-b aaa aab aae aak aao aas aau aav aay ab- aba abb abe abk abo abs abu abv aby aea aeb aee aek aeo aes aeu aev aey aka akb ake akk ako aks aku akv aoa aob aoe aok aoo aos aou aov as- asa asb ase ask aso ass asu asv asy au- aua aub aue auk auo aus auv av- ava avb ave avk avo avs avu avy ay- aya aye ayk ayo ays ayu b-u baa bab bae bak bao bas bau bav bay bba bbb bbe bbk bbo bbs bbu bby be- bea beb bee bek beo bes beu bev bey bka bkb bke bkk bko bks bkv boa bob boe bok boo bos bou bov boy bsa bsb bse bsk bso bss bsu bsv bsy bua bub bue buk buo bus buu buy bva bvb bve bvk bvo bvs bvu bvv by- bya bye byk byo bys byu eaa eab eae eak eao eas eau eav eba ebb ebe ebk ebo ebs ebu ebv eby eea eeb eee eek eeo ees eev eey eka ekb eke eko eks eku ekv eky eo- eoa eob eoe eok eoo eos eou es- esa esb ese esk eso ess esu esv esy eu- eua eub eue eus euv eva evb eve evo evs evv evy eya eye eyo eys ka- kaa kab kae kak kao kas kau kav kay kba kbb kbe kbk kbo kbs kbu ke- kea keb kee kek keo kes kev key kkb kke kkk kks kku kkv kky koa kob koe kok koo kos kou koy ksa ksb kse ksk kso kss ksu ksv kub kue kuk kus kuu kuy kva kvb kvk kvo kvs kvv kya kye kyo kys kyu oaa oab oae oak oao oas oau oav ob- oba obb obe obk obo obs obu obv oby oea oeb oee oeo oes oey oka okb oke okk oko oks oku oo- ooa oob ook ooo oos oov os- osa osb ose osk oso oss osu osv ou- oua oue ouk ouo ous ov- ova ovb ove ovo ovs ovv oya oye oyo oys saa sab sae sak sao sas sau sav say sba sbb sbe sbk sbo sbs sbu sbv sby se- sea seb see sek seo ses seu sev sey sk- ska skb ske skk sko sks sku sky soa sob soe sok soo sos sou sov soy ss- ssa ssb sse ssk sso sss ssu ssv sua sub sue suk suo sus suu suv suy sva svb sve svk svo svs svu svv svy sy- sya syb sye syk sys syu ua- uaa uab uae uak uao uas uau uav uay uba ubb ube ubk ubo ubs ubu ubv uby uea ueb uee ues uey uka ukb uke ukk uku uoa uob uoe uok uoo uos usa usb use usk uso uss usu usv uua uue uus uuu uva uvb uve uvo uvs uvu uvv uyo uys uyu v-a v-e vaa vab vae vak vao vas vau vav vay vba vbk vbo vbs vbv vea veb vee vek veo ves veu vey vka vkb voa vob voe vok voo vos vou vov voy vsa vsb vse vsk vso vss vsu vsv vue vuk vus vuv vva vvb vvo vvs vvv vye yaa yab yae yak yao yas yau yav yay ybe ybs yby yea yeb yee yek yeo yes yev yey yka ykk yob yoe yok yoo yos you yoy ysa ysb yse ysk yso yss ysu ysy yua yue yuk yuo yus yuu yuv yuy yva yve yvo yvy yyb yye yys yyu yyy