a-a a-c aaa aac aah aak aan aao ac- aca acc ach ack acn aco aha ahc ahh ahk ahn aho aka akc akh akk akn ako an- ana anc anh ank ann ano aoa aoc aoh aok aon aoo c-- caa cac cah cak can cao cca ccc cch cck ccn cco ch- cha chc chh chk chn cho cka ckc ckh cko cn- cna cnc cnh cnn cno co- coa coc coh cok con coo haa hac hah hak han hao hca hcc hch hck hcn hco hha hhc hhh hhk hhn hho hka hkh hkk hkn hko hna hnc hnh hnk hnn hno hoa hoc hoh hok hon hoo ka- kaa kac kah kak kan kao kca kcc kch kck kcn kha khh khk khn kho kkc kkh kkk kkn kn- kna knc knk knn kno koa koc koh kok kon koo naa nac nah nak nan nao nca ncc nch nck ncn nco nha nhc nhh nhk nhn nka nkc nkk nkn nko nna nnc nnh nnk nnn nno no- noa noc noh nok non noo oaa oac oah oak oan oao oc- oca occ och ock ocn oco oha ohc ohh ohn oho oka okc okk oko on- ona onc onh onk onn ono oo- ooa ooc ooh ook oon ooo