kkk kkm kkr kkv kky kmk kmm kmo kok kom koo kor koy krk kro krr krv kry kvk kvm kvo kvr kvv kym kyo kyr m-o m-r m-v mkk mkm mko mkr mkv mky mmk mmm mmo mmr mmv mok mom moo mor mov moy mrk mrm mro mrr mrv mry mvm mvo mvr mvv mvy my- myk mym myo myr myv okk oko okr om- omm omo omr omv omy oo- ook oom ooo oor oov or- ork orm oro orr orv ory ov- ovo ovv oyo rkk rkm rko rkv rky rmm rmo rmr rmv rok rom roo ror rov roy rrk rrm rrr rvm rvo rvr rvv rvy ry- ryk rym ryo ryr ryy vkm vm- vmm vmo vmr vok vom voo vor vov voy vrk vrm vrr vry vvm vvo vvr vvv vym ykk ykm ymm ymo yok yom yoo yor yoy yro yvo yvr yvy yyy