a-a a-c a-t aaa aac aak aar aat aay ac- aca acc ack acr act acy aka akc akk akr ar- ara arc ark arr art ary at- ata atc atr att ay- aya ayc ayk ayr ayt c-- caa cac cak car cat cay cca ccc cck ccr cct cka ckc ckt cky cra crc crk crr crt cry cta ctc ctk ctr ctt cty cya cyc cyk cyr cyt k-t ka- kaa kac kak kar kat kay kca kcc kck kcr kct kkc kkk kkr kkt kky kra krc krk krr krt kry kta ktc ktk ktr ktt kya kyc kyr kyt ra- raa rac rak rar rat ray rca rcc rcr rct rkc rkk rkt rky rra rrc rrk rrr rrt rta rtc rtk rtr rtt rty ry- rya ryc ryk ryr ryy taa tac tak tar tat tay tca tcc tck tcr tct tka tkc tkk tkr tkt tky tra trc trk trr trt try tta ttc ttk ttr ttt tty tya tyc tyr tyt yaa yac yak yar yat yay yca ycc ycy yka ykk yra yrc yrt yta ytc ytk ytr ytt yyc yyt yyy