-er -ey -ic a-a a-b a-c a-i a-t aaa aab aac aae aai aar aat aay ab- aba abb abc abe abi abr abt aby ac- aca acb acc ace aci acr act acy aea aeb aec aee aei aer aet aey ai- aia aib aic aie aii air ait aiy ar- ara arb arc are ari arr art ary at- ata atb atc ate ati atr att ay- aya ayc aye ayi ayr ayt baa bab bac bae bai bar bat bay bba bbb bbc bbe bbi bbr bbt bby bca bcb bcc bce bci bcr bct bcy be- bea beb bec bee bei ber bet bey bi- bia bib bic bie bii bir bit biy bra brb bre bri brr brt bry bta btb btc bte bti btr btt bty by- bya byc bye byi byr byt c-- caa cab cac cae cai car cat cay cba cbb cbc cbe cbi cbr cbt cby cca ccb ccc cce cci ccr cct ce- cea ceb cec cee cei cer cet cey ci- cia cib cic cie cii cir cit cra crb crc cre cri crr crt cry cta ctb ctc cte cti ctr ctt cty cya cyb cyc cye cyr cyt eaa eab eac eae eai ear eat eba ebb ebc ebe ebi ebr ebt eby ec- eca ecb ecc ece eci ecr ect eea eeb eec eee eer eet eey eia eib eic eie eii eir eit era erb erc ere eri err ert ery eta etb etc ete eti etr ett ety eya eyc eye eyr eyt ia- iaa iab iac iae iai iar iat iba ibb ibc ibe ibi ibr ibt iby ica icb icc ice ici icr ict icy ie- iea iec iee iei ier iet iey iia iib iic iie iii iir iit ir- ira irb irc ire iri irr irt iry ita itb itc ite iti itt ity iya iyc iye iyr iyt iyy ra- raa rab rac rae rai rar rat ray rba rbb rbc rbe rbi rbr rbt rca rcb rcc rce rci rcr rct re- rea reb rec ree rei rer ret rey ria rib ric rie rii rir rit riy rra rrb rrc rri rrr rrt rta rtb rtc rte rti rtr rtt rty ry- rya ryc rye ryr ryy taa tab tac tae tai tar tat tay tba tbb tbc tbe tbi tbr tbt tca tcb tcc tce tci tcr tct te- tea teb tec tee tei ter tet tey tia tib tic tie tii tir tit tiy tra trb trc tre tri trr trt try tta ttb ttc tte tti ttr ttt tty tya tyc tye tyr tyt yaa yab yac yae yai yar yat yay ybc ybe ybi ybr yby yca ycc yce yci ycy yea yeb yec yee yei yer yet yey yie yii yir yit yra yrc yre yrt yta ytc yte ytr ytt yyb yyc yye yyt yyy