-er -ey a-a a-c aaa aac aad aae aak aar aay ac- aca acc acd ace ack acr acy ad- ada adc add ade adk adr ady aea aec aed aee aek aer aey aka akc akd ake akk akr ar- ara arc ard are ark arr ary ay- aya ayc ayd aye ayk ayr c-- caa cac cad cae cak car cay cca ccc ccd cce cck ccr cda cdc cdd cde cdk cdr cdy ce- cea cec ced cee cek cer cey cka ckc ckd cky cra crc crd cre crk crr cry cya cyc cyd cye cyk cyr daa dac dad dae dak dar day dca dcc dcd dce dck dcr dda ddc ddd dde ddk ddr ddy de- dea dec ded dee dek der dey dka dkc dke dkk dkr dra drc drd dre drk drr dry dy- dya dyc dyd dye dyk dyr dyy eaa eac ead eae eak ear ec- eca ecc ecd ece eck ecr ed- eda edc edd ede edk edr edy eea eec eed eee eek eer eey eka ekc ekd eke ekr eky era erc erd ere erk err ery eya eyc eyd eye eyr ka- kaa kac kad kae kak kar kay kca kcc kcd kce kck kcr kda kdc kde kdk kdr kdy ke- kea kec ked kee kek ker key kkc kke kkk kkr kky kra krc krd krk krr kry kya kyc kyd kye kyr ra- raa rac rad rae rak rar ray rca rcc rcd rce rcr rda rdc rdd rde rdr rdy re- rea rec red ree rek rer rey rkc rke rkk rky rra rrc rrd rrk rrr ry- rya ryc ryd rye ryk ryr ryy yaa yac yad yae yak yar yay yca ycc ycd yce ycy yda yde ydy yea yec yed yee yek yer yey yka ykk yra yrc yre yyc yye yyy