-ic a-a a-c a-i a-t aaa aac aag aai aao aar aas aat aay ac- aca acc acg aci aco acr acs act acy ag- aga agc agg agi ago agr ags agt agy ai- aia aic aig aii aio air ais ait aiy aoa aoc aog aoi aoo aor aos aot ar- ara arc arg ari aro arr ars art ary as- asa asc asg asi aso asr ass ast asy at- ata atc atg ati ato atr ats att ay- aya ayc ayi ayo ayr ays ayt c-- caa cac cag cai cao car cas cat cay cca ccc ccg cci cco ccr ccs cct cga cgc cgg cgi cgo cgr cgs cgt cgy ci- cia cic cig cii cio cir cis cit co- coa coc cog coi coo cor cos cot coy cra crc crg cri cro crr crs crt cry csa csc csg csi cso csr css cst csy cta ctc ctg cti cto ctr cts ctt cty cya cyc cyg cyo cyr cys cyt gaa gac gag gai gao gar gas gat gay gca gcc gcg gci gco gcr gcs gct gga ggc ggg ggi ggo ggr ggs ggt gia gic gig gii gio gir gis git giy goa goc gog goi goo gor gos got goy gra grc grg gri gro grr grs grt gry gsa gsc gsg gsi gso gsr gss gst gta gtc gtg gti gto gtr gts gtt gty gy- gya gyo gyr gys ia- iaa iac iag iai iao iar ias iat ica icc icg ici ico icr ics ict icy iga igc igg igi igo igr igs igt igy iia iic iii iio iir iis iit io- ioa ioc iog ioi ioo ior ios iot ir- ira irc irg iri iro irr irs irt iry is- isa isc isg isi iso isr iss ist isy ita itc itg iti ito its itt ity iya iyc iyo iyr iys iyt iyy o-i oaa oac oag oai oao oar oas oat oc- oca occ ocg oci oco ocr ocs oct oga ogc ogg ogi ogo ogs ogt ogy oia oic oii oio oir ois oit oo- ooa ooc oog ooi ooo oor oos oot or- ora orc org ori oro orr ors ort ory os- osa osc osg osi oso osr oss ost ot- ota otc otg oti oto otr ots ott oya oyi oyo oys ra- raa rac rag rai rao rar ras rat ray rca rcc rcg rci rco rcr rcs rct rga rgc rgg rgi rgo rgr rgs rgt ria ric rig rii rio rir ris rit riy roa roc rog roi roo ror ros rot roy rra rrc rrg rri rrr rrs rrt rsa rsc rsg rsi rso rsr rss rst rta rtc rtg rti rto rtr rts rtt rty ry- rya ryc ryg ryo ryr rys ryy saa sac sag sai sao sar sas sat say sca scc scg sci sco scr scs sct sga sgc sgg sgi sgo sgr sgs sgt sia sic sig sii sio sir sis sit soa soc sog soi soo sor sos sot soy sr- sra src srg sri sro srr srs srt sry ss- ssa ssc ssg ssi sso ssr sss sst sta stc stg sti sto str sts stt sty sy- sya syc syg syi syr sys syt taa tac tag tai tao tar tas tat tay tca tcc tcg tci tco tcr tcs tct tga tgc tgg tgi tgo tgr tgs tgt tgy tia tic tig tii tio tir tis tit tiy to- toa toc tog toi too tor tos tot toy tra trc trg tri tro trr trs trt try tsa tsc tsg tsi tso tsr tss tst tsy tta ttc ttg tti tto ttr tts ttt tty tya tyc tyg tyo tyr tys tyt yaa yac yag yai yao yar yas yat yay yca ycc yci yco ycs ycy yga ygc ygo yig yii yio yir yis yit yoc yog yoi yoo yor yos yot yoy yra yrc yrg yro yrs yrt ysa ysc ysg ysi yso ysr yss yst ysy yta ytc yto ytr yts ytt yyc yyg yys yyt yyy