a-a aaa aak aam aan aao aar aka akk akm akn ako akr ama amk amm amn amo amr an- ana ank anm ann ano anr aoa aok aom aon aoo aor ar- ara ark arm arn aro arr ka- kaa kak kam kan kao kar kkk kkm kkn kkr kma kmk kmm kmo kn- kna knk knm knn kno knr koa kok kom kon koo kor kra krk krn kro krr m-o m-r maa mak mam man mao mar mka mkk mkm mkn mko mkr mma mmk mmm mmn mmo mmr mna mnk mnm mnn mno mnr moa mok mom mon moo mor mra mrk mrm mrn mro mrr naa nak nam nan nao nar nka nkk nkm nkn nko nkr nma nmk nmm nmn nmo nmr nna nnk nnm nnn nno no- noa nok nom non noo nor nra nrk nrm nrn nro nrr oaa oak oam oan oao oar oka okk oko okr om- oma omm omn omo omr on- ona onk onn ono onr oo- ooa ook oom oon ooo oor or- ora ork orm orn oro orr ra- raa rak ram ran rao rar rkk rkm rko rma rmm rmn rmo rmr rna rnm rnn rno rnr roa rok rom ron roo ror rra rrk rrm rrn rrr