a-a a-c aaa aac aak aar aau ac- aca acc ack acr acu aka akc akk akr aku ar- ara arc ark arr aru au- aua auc auk aur c-- caa cac cak car cau cca ccc cck ccr ccu cka ckc cra crc crk crr cru cua cuc cuk cur cuu ka- kaa kac kak kar kau kca kcc kck kcr kcu kkc kkk kkr kku kra krc krk krr kru kuc kuk kur kuu ra- raa rac rak rar rau rca rcc rcr rcu rkc rkk rku rra rrc rrk rrr rru rua ruc ruk rur ruu ua- uaa uac uak uar uau uca ucc uck ucr ucu uka ukc ukk ukr uku ur- ura urc urk urr uru uua uuc uur uuu