kkk kkm kkr kks kkv kky kmk kmm kmo kms kok kom koo kor kos koy krk kro krr krs krv kry ksk ksm kso ksr kss ksv kvk kvm kvo kvr kvs kvv kym kyo kyr kys m-o m-r m-v mkk mkm mko mkr mks mkv mky mmk mmm mmo mmr mms mmv mok mom moo mor mos mov moy mrk mrm mro mrr mrs mrv mry msk msm mso msr mss msv msy mvm mvo mvr mvs mvv mvy my- myk mym myo myr mys myv okk oko okr oks om- omm omo omr oms omv omy oo- ook oom ooo oor oos oov or- ork orm oro orr ors orv ory os- osk osm oso osr oss osv ov- ovo ovs ovv oyo oys rkk rkm rko rks rkv rky rmm rmo rmr rms rmv rok rom roo ror ros rov roy rrk rrm rrr rrs rsk rsm rso rsr rss rsv rvm rvo rvr rvs rvv rvy ry- ryk rym ryo ryr rys ryy sk- skk skm sko skr sks sky smk smm smo smr sms smv smy sok som soo sor sos sov soy sr- srk srm sro srr srs srv sry ss- ssk ssm sso ssr sss ssv svk svm svo svr svs svv svy sy- syk sym syr sys vkm vm- vmm vmo vmr vok vom voo vor vos vov voy vrk vrm vrr vrs vry vsk vsm vso vsr vss vsv vvm vvo vvr vvs vvv vym ykk ykm ymm ymo yms yok yom yoo yor yos yoy yro yrs ysk ysm yso ysr yss ysy yvo yvr yvy yys yyy