-th a-a a-c a-t aaa aac aah aar aas aat aay ac- aca acc ach acr acs act acy aha ahc ahh ahr ahs aht ahy ar- ara arc arh arr ars art ary as- asa asc ash asr ass ast asy at- ata atc ath atr ats att ay- aya ayc ayh ayr ays ayt c-- caa cac cah car cas cat cay cca ccc cch ccr ccs cct ch- cha chc chh chr chs cht chy cra crc crh crr crs crt cry csa csc csh csr css cst csy cta ctc cth ctr cts ctt cty cya cyc cyr cys cyt haa hac hah har has hat hay hca hcc hch hcr hcs hct hcy hha hhc hhh hhr hhs hht hhy hr- hra hrc hrh hrr hrs hrt hsa hsc hsh hsr hss hst hsy hta htc hth htr hts htt hty hy- hya hyc hyh hyr hys hyt hyy ra- raa rac rah rar ras rat ray rca rcc rch rcr rcs rct rh- rha rhc rhh rhr rhs rht rra rrc rrh rrr rrs rrt rsa rsc rsh rsr rss rst rta rtc rtr rts rtt rty ry- rya ryc ryr rys ryy saa sac sah sar sas sat say sca scc sch scr scs sct sh- sha shc shh shr shs sht shy sr- sra src srh srr srs srt sry ss- ssa ssc ssh ssr sss sst sta stc sth str sts stt sty sy- sya syc syh syr sys syt taa tac tah tar tas tat tay tca tcc tch tcr tcs tct th- tha thc thh thr ths tht thy tra trc trh trr trs trt try tsa tsc tsh tsr tss tst tsy tta ttc tth ttr tts ttt tty tya tyc tyr tys tyt yaa yac yah yar yas yat yay yca ycc ych ycs ycy yha yhc yhs yht yra yrc yrs yrt ysa ysc ysr yss yst ysy yta ytc yth ytr yts ytt yyc yys yyt yyy