kkk kkm kkr kks kky kmk kmm kmo kms kok kom koo kor kos koy krk kro krr krs kry ksk ksm kso ksr kss kym kyo kyr kys m-o m-r mkk mkm mko mkr mks mky mmk mmm mmo mmr mms mok mom moo mor mos moy mrk mrm mro mrr mrs mry msk msm mso msr mss msy my- myk mym myo myr mys okk oko okr oks om- omm omo omr oms omy oo- ook oom ooo oor oos or- ork orm oro orr ors ory os- osk osm oso osr oss oyo oys rkk rkm rko rks rky rmm rmo rmr rms rok rom roo ror ros roy rrk rrm rrr rrs rsk rsm rso rsr rss ry- ryk rym ryo ryr rys ryy sk- skk skm sko skr sks sky smk smm smo smr sms smy sok som soo sor sos soy sr- srk srm sro srr srs sry ss- ssk ssm sso ssr sss sy- syk sym syr sys ykk ykm ymm ymo yms yok yom yoo yor yos yoy yro yrs ysk ysm yso ysr yss ysy yys yyy