-er -ey a-a a-c aaa aac aae aak aan aar aay ac- aca acc ace ack acn acr acy aea aec aee aek aen aer aey aka akc ake akk akn akr an- ana anc ane ank ann anr any ar- ara arc are ark arn arr ary ay- aya ayc aye ayk ayn ayr c-- caa cac cae cak can car cay cca ccc cce cck ccn ccr ce- cea cec cee cek cen cer cey cka ckc cky cn- cna cnc cne cnn cnr cny cra crc cre crk crn crr cry cya cyc cye cyk cyn cyr eaa eac eae eak ean ear ec- eca ecc ece eck ecn ecr eea eec eee eek een eer eey eka ekc eke ekr eky en- ena enc ene enk enn enr eny era erc ere erk ern err ery eya eyc eye eyn eyr ka- kaa kac kae kak kan kar kay kca kcc kce kck kcn kcr ke- kea kec kee kek ken ker key kkc kke kkk kkn kkr kky kn- kna knc kne knk knn knr kra krc krk krn krr kry kya kyc kye kyn kyr naa nac nae nak nan nar nay nca ncc nce nck ncn ncr ne- nea nec nee nek nen ner ney nka nkc nke nkk nkn nkr nky nna nnc nne nnk nnn nra nrc nre nrk nrn nrr nry nya nyc nye nyk nyn nyy ra- raa rac rae rak ran rar ray rca rcc rce rcn rcr re- rea rec ree rek ren rer rey rkc rke rkk rky rna rnc rnn rnr rny rra rrc rrk rrn rrr ry- rya ryc rye ryk ryn ryr ryy yaa yac yae yak yan yar yay yca ycc yce ycy yea yec yee yek yen yer yey yka ykk ykn yna yne ynk ynn yny yra yrc yre yrn yyc yye yyy