-er -ey a-a a-c a-q aaa aac aae aak aaq aar aay ac- aca acc ace ack acq acr acy aea aec aee aek aeq aer aey aka akc ake akk akr aqa aqc aqr ar- ara arc are ark arq arr ary ay- aya ayc aye ayk ayr c-- caa cac cae cak caq car cay cca ccc cce cck ccr ce- cea cec cee cek ceq cer cey cka ckc cky cqa cqc cra crc cre crk crq crr cry cya cyc cye cyk cyr eaa eac eae eak ear ec- eca ecc ece eck ecq ecr eea eec eee eek eer eey eka ekc eke ekr eky eqa eqe eqq era erc ere erk erq err ery eya eyc eye eyr ka- kaa kac kae kak kar kay kca kcc kce kck kcr ke- kea kec kee kek ker key kkc kke kkk kkr kky kqa kra krc krk krr kry kya kyc kye kyr qaa qac qar qca qcc qec qee qqk qqq qra qrc qre ra- raa rac rae rak raq rar ray rca rcc rce rcr re- rea rec ree rek req rer rey rkc rke rkk rky rqc rra rrc rrk rrq rrr ry- rya ryc rye ryk ryr ryy yaa yac yae yak yar yay yca ycc yce ycy yea yec yee yek yer yey yka ykk yqr yra yrc yre yyc yye yyy