ddd ddh ddk ddn ddo dh- dhd dhh dhk dho dkk dko dnd dnh dnk dnn dno dod doh dok don doo hdd hdh hdk hdn hdo hhd hhh hhk hhn hho hkd hkh hkk hkn hko hnd hnh hnk hnn hno hod hoh hok hon hoo kdh kdk kdo khh khk khn kho kkh kkk kkn kn- knd knk knn kno kod koh kok kon koo ndd ndh ndk ndn ndo nhd nhh nhk nhn nkk nkn nko nnh nnk nnn nno no- nod noh nok non noo odd odh odn odo ohd ohh ohn oho okd okk oko on- ond onh onk onn ono oo- ood ooh ook oon ooo