a-a a-c aaa aac aad aak aao aar aas aay ac- aca acc acd ack aco acr acs acy ad- ada adc add adk ado adr ads ady aka akc akd akk ako akr aks aoa aoc aod aok aoo aor aos ar- ara arc ard ark aro arr ars ary as- asa asc asd ask aso asr ass asy ay- aya ayc ayd ayk ayo ayr ays c-- caa cac cad cak cao car cas cay cca ccc ccd cck cco ccr ccs cda cdc cdd cdk cdo cdr cds cdy cka ckc ckd cko cks cky co- coa coc cod cok coo cor cos coy cra crc crd crk cro crr crs cry csa csc csd csk cso csr css csy cya cyc cyd cyk cyo cyr cys daa dac dad dak dao dar das day dca dcc dcd dck dco dcr dcs dda ddc ddd ddk ddo ddr dds ddy dka dkc dkk dko dkr dks doa doc dod dok doo dor dos doy dra drc drd drk dro drr drs dry dsa dsc dsd dsk dso dsr dss dsy dy- dya dyc dyd dyk dyo dyr dys dyy ka- kaa kac kad kak kao kar kas kay kca kcc kcd kck kcr kcs kda kdc kdk kdo kdr kds kdy kkc kkk kkr kks kky koa koc kod kok koo kor kos koy kra krc krd krk kro krr krs kry ksa ksc ksd ksk kso ksr kss kya kyc kyd kyo kyr kys oaa oac oad oak oao oar oas oc- oca occ ocd ock oco ocr ocs oda odc odd odo odr ods oka okc okd okk oko okr oks oo- ooa ooc ood ook ooo oor oos or- ora orc ord ork oro orr ors ory os- osa osc osd osk oso osr oss oya oyd oyo oys ra- raa rac rad rak rao rar ras ray rca rcc rcd rco rcr rcs rda rdc rdd rdo rdr rds rdy rkc rkk rko rks rky roa roc rod rok roo ror ros roy rra rrc rrd rrk rrr rrs rsa rsc rsd rsk rso rsr rss ry- rya ryc ryd ryk ryo ryr rys ryy saa sac sad sak sao sar sas say sca scc scd sck sco scr scs sda sdc sdd sdk sdo sdr sds sdy sk- ska skc skd skk sko skr sks sky soa soc sod sok soo sor sos soy sr- sra src srd srk sro srr srs sry ss- ssa ssc ssd ssk sso ssr sss sy- sya syc syd syk syr sys yaa yac yad yak yao yar yas yay yca ycc ycd yco ycs ycy yda ydo yds ydy yka ykk yoc yod yok yoo yor yos yoy yra yrc yro yrs ysa ysc ysk yso ysr yss ysy yyc yys yyy