a-a a-c aaa aac aar aau aav ac- aca acc acr acu acv ar- ara arc arr aru arv au- aua auc aur auv av- ava avc avr avu c-- caa cac car cau cav cca ccc ccr ccu ccv cra crc crr cru crv cua cuc cur cuu cuv cva cvc cvr cvu cvv ra- raa rac rar rau rav rca rcc rcr rcu rcv rra rrc rrr rru rua ruc rur ruu ruv rva rvc rvr rvu rvv ua- uaa uac uar uau uav uca ucc ucr ucu ucv ur- ura urc urr uru uua uuc uur uuu uva uvc uvu uvv v-a vaa vac var vau vav vca vcc vcr vcu vra vrc vrr vru vur vuv vva vvc vvr vvv