a-a aaa aak aao aar aas aav aay aka akk ako akr aks akv aoa aok aoo aor aos aov ar- ara ark aro arr ars arv ary as- asa ask aso asr ass asv asy av- ava avk avo avr avs avy ay- aya ayk ayo ayr ays ka- kaa kak kao kar kas kav kay kkk kkr kks kkv kky koa kok koo kor kos koy kra krk kro krr krs krv kry ksa ksk kso ksr kss ksv kva kvk kvo kvr kvs kvv kya kyo kyr kys oaa oak oao oar oas oav oka okk oko okr oks oo- ooa ook ooo oor oos oov or- ora ork oro orr ors orv ory os- osa osk oso osr oss osv ov- ova ovo ovs ovv oya oyo oys ra- raa rak rao rar ras rav ray rkk rko rks rkv rky roa rok roo ror ros rov roy rra rrk rrr rrs rsa rsk rso rsr rss rsv rva rvo rvr rvs rvv rvy ry- rya ryk ryo ryr rys ryy saa sak sao sar sas sav say sk- ska skk sko skr sks sky soa sok soo sor sos sov soy sr- sra srk sro srr srs srv sry ss- ssa ssk sso ssr sss ssv sva svk svo svr svs svv svy sy- sya syk syr sys v-a vaa vak vao var vas vav vay vka voa vok voo vor vos vov voy vra vrk vrr vrs vry vsa vsk vso vsr vss vsv vva vvo vvr vvs vvv yaa yak yao yar yas yav yay yka ykk yok yoo yor yos yoy yra yro yrs ysa ysk yso ysr yss ysy yva yvo yvr yvy yys yyy