-er -ey a-a a-c aaa aac aae aar aav aay ac- aca acc ace acr acv acy aea aec aee aer aev aey ar- ara arc are arr arv ary av- ava avc ave avr avy ay- aya ayc aye ayr c-- caa cac cae car cav cay cca ccc cce ccr ccv ce- cea cec cee cer cev cey cra crc cre crr crv cry cva cvc cve cvr cvv cya cyc cye cyr eaa eac eae ear eav ec- eca ecc ece ecr ecv eea eec eee eer eev eey era erc ere err erv ery eva evc eve evr evv evy eya eyc eye eyr ra- raa rac rae rar rav ray rca rcc rce rcr rcv re- rea rec ree rer rev rey rra rrc rrr rva rvc rve rvr rvv rvy ry- rya ryc rye ryr ryy v-a v-e vaa vac vae var vav vay vca vcc vce vcr vcy vea vec vee ver vey vra vrc vre vrr vry vva vvc vvr vvv vye yaa yac yae yar yav yay yca ycc yce ycv ycy yea yec yee yer yev yey yra yrc yre yva yve yvr yvy yyc yye yyy