a-a a-c aaa aac aar aav aay ac- aca acc acr acv acy ar- ara arc arr arv ary av- ava avc avr avy ay- aya ayc ayr c-- caa cac car cav cay cca ccc ccr ccv cra crc crr crv cry cva cvc cvr cvv cya cyc cyr ra- raa rac rar rav ray rca rcc rcr rcv rra rrc rrr rva rvc rvr rvv rvy ry- rya ryc ryr ryy v-a vaa vac var vav vay vca vcc vcr vcy vra vrc vrr vry vva vvc vvr vvv yaa yac yar yav yay yca ycc ycv ycy yra yrc yva yvr yvy yyc yyy