-th a-a a-c a-t aaa aac aah aar aat aay ac- aca acc ach acr act acy aha ahc ahh ahr aht ahy ar- ara arc arh arr art ary at- ata atc ath atr att ay- aya ayc ayh ayr ayt c-- caa cac cah car cat cay cca ccc cch ccr cct ch- cha chc chh chr cht chy cra crc crh crr crt cry cta ctc cth ctr ctt cty cya cyc cyr cyt haa hac hah har hat hay hca hcc hch hcr hct hcy hha hhc hhh hhr hht hhy hr- hra hrc hrh hrr hrt hta htc hth htr htt hty hy- hya hyc hyh hyr hyt hyy ra- raa rac rah rar rat ray rca rcc rch rcr rct rh- rha rhc rhh rhr rht rra rrc rrh rrr rrt rta rtc rtr rtt rty ry- rya ryc ryr ryy taa tac tah tar tat tay tca tcc tch tcr tct th- tha thc thh thr tht thy tra trc trh trr trt try tta ttc tth ttr ttt tty tya tyc tyr tyt yaa yac yah yar yat yay yca ycc ych ycy yha yhc yht yra yrc yrt yta ytc yth ytr ytt yyc yyt yyy