-er -ey a-a a-c a-t aaa aac aae aak aar aat aay ac- aca acc ace ack acr act acy aea aec aee aek aer aet aey aka akc ake akk akr ar- ara arc are ark arr art ary at- ata atc ate atr att ay- aya ayc aye ayk ayr ayt c-- caa cac cae cak car cat cay cca ccc cce cck ccr cct ce- cea cec cee cek cer cet cey cka ckc ckt cky cra crc cre crk crr crt cry cta ctc cte ctk ctr ctt cty cya cyc cye cyk cyr cyt eaa eac eae eak ear eat ec- eca ecc ece eck ecr ect eea eec eee eek eer eet eey eka ekc eke ekr ekt eky era erc ere erk err ert ery eta etc ete etk etr ett ety eya eyc eye eyr eyt k-t ka- kaa kac kae kak kar kat kay kca kcc kce kck kcr kct ke- kea kec kee kek ker ket key kkc kke kkk kkr kkt kky kra krc krk krr krt kry kta ktc kte ktk ktr ktt kya kyc kye kyr kyt ra- raa rac rae rak rar rat ray rca rcc rce rcr rct re- rea rec ree rek rer ret rey rkc rke rkk rkt rky rra rrc rrk rrr rrt rta rtc rte rtk rtr rtt rty ry- rya ryc rye ryk ryr ryy taa tac tae tak tar tat tay tca tcc tce tck tcr tct te- tea tec tee tek ter tet tey tka tkc tke tkk tkr tkt tky tra trc tre trk trr trt try tta ttc tte ttk ttr ttt tty tya tyc tye tyr tyt yaa yac yae yak yar yat yay yca ycc yce ycy yea yec yee yek yer yet yey yka ykk yra yrc yre yrt yta ytc yte ytk ytr ytt yyc yye yyt yyy