-er -ey -ic a-a a-c a-i aaa aac aae aai aak aar aay ac- aca acc ace aci ack acr acy aea aec aee aei aek aer aey ai- aia aic aie aii aik air aiy aka akc ake aki akk akr ar- ara arc are ari ark arr ary ay- aya ayc aye ayi ayk ayr c-- caa cac cae cai cak car cay cca ccc cce cci cck ccr ce- cea cec cee cei cek cer cey ci- cia cic cie cii cik cir cka ckc cki cky cra crc cre cri crk crr cry cya cyc cye cyk cyr eaa eac eae eai eak ear ec- eca ecc ece eci eck ecr eea eec eee eek eer eey eia eic eie eii eik eir eka ekc eke eki ekr eky era erc ere eri erk err ery eya eyc eye eyr ia- iaa iac iae iai iar ica icc ice ici ick icr icy ie- iea iec iee iei iek ier iey iia iic iie iii iir ika ikc ike iki ikk ikr ir- ira irc ire iri irk irr iry iya iyc iye iyr iyy ka- kaa kac kae kai kak kar kay kca kcc kce kci kck kcr ke- kea kec kee kei kek ker key kia kic kie kii kik kir kkc kke kki kkk kkr kky kra krc kri krk krr kry kya kyc kye kyr ra- raa rac rae rai rak rar ray rca rcc rce rci rcr re- rea rec ree rei rek rer rey ria ric rie rii rik rir riy rkc rke rkk rky rra rrc rri rrk rrr ry- rya ryc rye ryk ryr ryy yaa yac yae yai yak yar yay yca ycc yce yci ycy yea yec yee yei yek yer yey yie yii yir yka yki ykk yra yrc yre yyc yye yyy