a-a a-c a-t aaa aac aao aap aar aas aat aay ac- aca acc aco acp acr acs act acy aoa aoc aoo aop aor aos aot ap- apa apc apo app apr aps apt apy ar- ara arc aro arp arr ars art ary as- asa asc aso asp asr ass ast asy at- ata atc ato atp atr ats att ay- aya ayc ayo ayp ayr ays ayt c-- caa cac cao cap car cas cat cay cca ccc cco ccp ccr ccs cct co- coa coc coo cop cor cos cot coy cpa cpc cpo cpp cpr cps cpt cra crc cro crp crr crs crt cry csa csc cso csp csr css cst csy cta ctc cto ctp ctr cts ctt cty cya cyc cyo cyp cyr cys cyt oaa oac oao oap oar oas oat oc- oca occ oco ocp ocr ocs oct oo- ooa ooc ooo oop oor oos oot op- opa opc opo opp opr ops opt opy or- ora orc oro orp orr ors ort ory os- osa osc oso osp osr oss ost ot- ota otc oto otp otr ots ott oya oyo oys p-p paa pac pao pap par pas pat pay pca pcc pco pcp pcr pcs pct poa poc poo pop por pos pot poy ppa ppc ppo ppp ppr pps ppt pra prc pro prp prr prs prt pry ps- psa psc pso psp psr pss pst psy pt- pta ptc pto ptp ptr pts ptt pty py- pya pyc pyo pyr pys pyt ra- raa rac rao rap rar ras rat ray rca rcc rco rcp rcr rcs rct roa roc roo rop ror ros rot roy rpa rpc rpo rpp rpr rps rpt rra rrc rrp rrr rrs rrt rsa rsc rso rsp rsr rss rst rta rtc rto rtp rtr rts rtt rty ry- rya ryc ryo ryr rys ryy saa sac sao sap sar sas sat say sca scc sco scp scr scs sct soa soc soo sop sor sos sot soy spa spc spo spp spr sps spt spy sr- sra src sro srp srr srs srt sry ss- ssa ssc sso ssp ssr sss sst sta stc sto stp str sts stt sty sy- sya syc syp syr sys syt taa tac tao tap tar tas tat tay tca tcc tco tcp tcr tcs tct to- toa toc too top tor tos tot toy tpa tpc tpo tpp tpr tps tpt tra trc tro trp trr trs trt try tsa tsc tso tsp tsr tss tst tsy tta ttc tto ttp ttr tts ttt tty tya tyc tyo typ tyr tys tyt yaa yac yao yap yar yas yat yay yca ycc yco ycp ycs ycy yoc yoo yop yor yos yot yoy ypa ypo yps yra yrc yro yrp yrs yrt ysa ysc yso ysp ysr yss yst ysy yta ytc yto ytp ytr yts ytt yyc yys yyt yyy