k-z kkk kkm kkn kkr kmk kmm kmo kmz kn- knk knm knn kno knr kok kom kon koo kor koz krk krn kro krr kzo m-o m-r mkk mkm mkn mko mkr mkz mmk mmm mmn mmo mmr mmz mnk mnm mnn mno mnr mnz mok mom mon moo mor moz mrk mrm mrn mro mrr mrz mzm mzn nkk nkm nkn nko nkr nmk nmm nmn nmo nmr nmz nnk nnm nnn nno nnz no- nok nom non noo nor noz nrk nrm nrn nro nrr nrz nzo nzz okk oko okr om- omm omn omo omr omz on- onk onn ono onr oo- ook oom oon ooo oor or- ork orm orn oro orr orz ozm ozo ozz rkk rkm rko rkz rmm rmn rmo rmr rnm rnn rno rnr rnz rok rom ron roo ror roz rrk rrm rrn rrr rzm rzo zmk zmm znn zno zo- zok zom zon zoo zor zro zzr zzz