a-a a-c a-t aaa aac aan aar aat aay ac- aca acc acn acr act acy an- ana anc ann anr ant any ar- ara arc arn arr art ary at- ata atc atn atr att ay- aya ayc ayn ayr ayt c-- caa cac can car cat cay cca ccc ccn ccr cct cn- cna cnc cnn cnr cnt cny cra crc crn crr crt cry cta ctc ctn ctr ctt cty cya cyc cyn cyr cyt naa nac nan nar nat nay nca ncc ncn ncr nct nna nnc nnn nnt nra nrc nrn nrr nrt nry nta ntc ntn ntr ntt nya nyc nyn nyt nyy ra- raa rac ran rar rat ray rca rcc rcn rcr rct rna rnc rnn rnr rnt rny rra rrc rrn rrr rrt rta rtc rtn rtr rtt rty ry- rya ryc ryn ryr ryy taa tac tan tar tat tay tca tcc tcn tcr tct tna tnc tnn tnr tnt tra trc trn trr trt try tta ttc ttn ttr ttt tty tya tyc tyn tyr tyt yaa yac yan yar yat yay yca ycc ycy yna ynn yny yra yrc yrn yrt yta ytc ytn ytr ytt yyc yyt yyy