a-a a-c aaa aac aak aar aas aay ac- aca acc ack acr acs acy aka akc akk akr aks ar- ara arc ark arr ars ary as- asa asc ask asr ass asy ay- aya ayc ayk ayr ays c-- caa cac cak car cas cay cca ccc cck ccr ccs cka ckc cks cky cra crc crk crr crs cry csa csc csk csr css csy cya cyc cyk cyr cys ka- kaa kac kak kar kas kay kca kcc kck kcr kcs kkc kkk kkr kks kky kra krc krk krr krs kry ksa ksc ksk ksr kss kya kyc kyr kys ra- raa rac rak rar ras ray rca rcc rcr rcs rkc rkk rks rky rra rrc rrk rrr rrs rsa rsc rsk rsr rss ry- rya ryc ryk ryr rys ryy saa sac sak sar sas say sca scc sck scr scs sk- ska skc skk skr sks sky sr- sra src srk srr srs sry ss- ssa ssc ssk ssr sss sy- sya syc syk syr sys yaa yac yak yar yas yay yca ycc ycs ycy yka ykk yra yrc yrs ysa ysc ysk ysr yss ysy yyc yys yyy