-er -ey a-a a-c a-t aaa aac aad aae aar aat aay ac- aca acc acd ace acr act acy ad- ada adc add ade adr adt ady aea aec aed aee aer aet aey ar- ara arc ard are arr art ary at- ata atc atd ate atr att ay- aya ayc ayd aye ayr ayt c-- caa cac cad cae car cat cay cca ccc ccd cce ccr cct cda cdc cdd cde cdr cdt cdy ce- cea cec ced cee cer cet cey cra crc crd cre crr crt cry cta ctc ctd cte ctr ctt cty cya cyc cyd cye cyr cyt daa dac dad dae dar dat day dca dcc dcd dce dcr dct dda ddc ddd dde ddr ddt ddy de- dea dec ded dee der det dey dra drc drd dre drr drt dry dta dtc dtd dte dtr dtt dty dy- dya dyc dyd dye dyr dyy eaa eac ead eae ear eat ec- eca ecc ecd ece ecr ect ed- eda edc edd ede edr edt edy eea eec eed eee eer eet eey era erc erd ere err ert ery eta etc etd ete etr ett ety eya eyc eyd eye eyr eyt ra- raa rac rad rae rar rat ray rca rcc rcd rce rcr rct rda rdc rdd rde rdr rdt rdy re- rea rec red ree rer ret rey rra rrc rrd rrr rrt rta rtc rtd rte rtr rtt rty ry- rya ryc ryd rye ryr ryy taa tac tad tae tar tat tay tca tcc tcd tce tcr tct tda tdc tdd tde tdr tdt tdy te- tea tec ted tee ter tet tey tra trc trd tre trr trt try tta ttc ttd tte ttr ttt tty tya tyc tyd tye tyr tyt yaa yac yad yae yar yat yay yca ycc ycd yce ycy yda yde ydt ydy yea yec yed yee yer yet yey yra yrc yre yrt yta ytc ytd yte ytr ytt yyc yye yyt yyy