a-a aaa aaf aak aan aao aar aas aay af- afa aff afk afn afo afr afs afy aka akk akn ako akr aks an- ana anf ank ann ano anr ans any aoa aof aok aon aoo aor aos ar- ara arf ark arn aro arr ars ary as- asa asf ask asn aso asr ass asy ay- aya ayf ayk ayn ayo ayr ays faa faf fak fan fao far fas fay ffa fff ffk ffn ffo ffr ffs ffy fka fkf fkk fna fnf fnk fnn fnr fns foa fof fok fon foo for fos foy fra frf frk frn fro frr frs fry fsa fsf fsk fsn fso fsr fss fy- fya fyk fyn fyo ka- kaa kaf kak kan kao kar kas kay kfa kff kfo kfs kkk kkn kkr kks kky kn- kna knf knk knn kno knr koa kof kok kon koo kor kos koy kra krf krk krn kro krr krs kry ksa ksf ksk ksn kso ksr kss kya kyn kyo kyr kys naa naf nak nan nao nar nas nay nfa nff nfk nfn nfo nfr nfs nka nkf nkk nkn nko nkr nks nky nna nnf nnk nnn nno nns no- noa nof nok non noo nor nos noy nra nrf nrk nrn nro nrr nrs nry nsa nsf nsk nsn nso nsr nss nsy nya nyf nyk nyn nyo nys nyy oaa oaf oak oan oao oar oas of- ofa off ofn ofo ofr ofs oka okk oko okr oks on- ona onf onk onn ono onr ons ony oo- ooa oof ook oon ooo oor oos or- ora orf ork orn oro orr ors ory os- osa osf osk osn oso osr oss oya oyo oys ra- raa raf rak ran rao rar ras ray rfa rff rfk rfn rfo rfr rfs rkf rkk rko rks rky rna rnn rno rnr rns rny roa rof rok ron roo ror ros roy rra rrf rrk rrn rrr rrs rsa rsf rsk rsn rso rsr rss ry- rya ryf ryk ryn ryo ryr rys ryy saa saf sak san sao sar sas say sfa sff sfk sfn sfo sfr sfs sk- ska skf skk sko skr sks sky sna snf snk snn sno snr sns sny soa sof sok son soo sor sos soy sr- sra srf srk srn sro srr srs sry ss- ssa ssf ssk ssn sso ssr sss sy- sya syk syn syr sys yaa yaf yak yan yao yar yas yay yfa yff yfr yfs yka ykk ykn yna ynk ynn yns yny yof yok yon yoo yor yos yoy yra yrf yrn yro yrs ysa ysk yso ysr yss ysy yyf yys yyy