k-t kkk kkm kkt kkv kmk kmm kmo kmt kok kom koo kot ktk ktm kto ktt ktv kvk kvm kvo kvv m-o m-v mkk mkm mko mkt mkv mmk mmm mmo mmt mmv mok mom moo mot mov mtk mtm mto mtt mtv mvm mvo mvt mvv okk oko om- omm omo omt omv oo- ook oom ooo oot oov ot- otk otm oto ott otv ov- ovo ovv tkk tkm tko tkt tmk tmm tmo tmt tmv to- tok tom too tot tov ttk ttm tto ttt ttv tvk tvm tvo tvt vkm vkt vm- vmm vmo vmt vok vom voo vot vov vtk vtm vto vtt vtv vvm vvo vvt vvv