a-a aaa aak aan aao aar aas aay aka akk akn ako akr aks an- ana ank ann ano anr ans any aoa aok aon aoo aor aos ar- ara ark arn aro arr ars ary as- asa ask asn aso asr ass asy ay- aya ayk ayn ayo ayr ays ka- kaa kak kan kao kar kas kay kkk kkn kkr kks kky kn- kna knk knn kno knr koa kok kon koo kor kos koy kra krk krn kro krr krs kry ksa ksk ksn kso ksr kss kya kyn kyo kyr kys naa nak nan nao nar nas nay nka nkk nkn nko nkr nks nky nna nnk nnn nno nns no- noa nok non noo nor nos noy nra nrk nrn nro nrr nrs nry nsa nsk nsn nso nsr nss nsy nya nyk nyn nyo nys nyy oaa oak oan oao oar oas oka okk oko okr oks on- ona onk onn ono onr ons ony oo- ooa ook oon ooo oor oos or- ora ork orn oro orr ors ory os- osa osk osn oso osr oss oya oyo oys ra- raa rak ran rao rar ras ray rkk rko rks rky rna rnn rno rnr rns rny roa rok ron roo ror ros roy rra rrk rrn rrr rrs rsa rsk rsn rso rsr rss ry- rya ryk ryn ryo ryr rys ryy saa sak san sao sar sas say sk- ska skk sko skr sks sky sna snk snn sno snr sns sny soa sok son soo sor sos soy sr- sra srk srn sro srr srs sry ss- ssa ssk ssn sso ssr sss sy- sya syk syn syr sys yaa yak yan yao yar yas yay yka ykk ykn yna ynk ynn yns yny yok yon yoo yor yos yoy yra yrn yro yrs ysa ysk yso ysr yss ysy yys yyy