-th a-a a-c a-t aaa aac aad aah aat aay ac- aca acc acd ach act acy ad- ada adc add adh adt ady aha ahc ahd ahh aht ahy at- ata atc atd ath att ay- aya ayc ayd ayh ayt c-- caa cac cad cah cat cay cca ccc ccd cch cct cda cdc cdd cdh cdt cdy ch- cha chc chd chh cht chy cta ctc ctd cth ctt cty cya cyc cyd cyt daa dac dad dah dat day dca dcc dcd dct dda ddc ddd ddh ddt ddy dh- dha dhc dhd dhh dht dta dtc dtd dth dtt dty dy- dya dyc dyd dyy haa hac had hah hat hay hca hcc hcd hch hct hcy hda hdc hdd hdh hdt hdy hha hhc hhd hhh hht hhy hta htc htd hth htt hty hy- hya hyc hyd hyh hyt hyy taa tac tad tah tat tay tca tcc tcd tch tct tda tdc tdd tdh tdt tdy th- tha thc thd thh tht thy tta ttc ttd tth ttt tty tya tyc tyd tyt yaa yac yad yah yat yay yca ycc ycd ych ycy yda ydt ydy yha yhc yht yta ytc ytd yth ytt yyc yyt yyy