-er a-a a-c a-t aaa aac aae aag aak aar aas aat ac- aca acc ace acg ack acr acs act aea aec aee aeg aek aer aes aet ag- aga agc age agg agk agr ags agt aka akc ake akg akk akr aks ar- ara arc are arg ark arr ars art as- asa asc ase asg ask asr ass ast at- ata atc ate atg atr ats att c-- caa cac cae cag cak car cas cat cca ccc cce ccg cck ccr ccs cct ce- cea cec cee ceg cek cer ces cet cga cgc cge cgg cgr cgs cgt cka ckc cks ckt cra crc cre crg crk crr crs crt csa csc cse csg csk csr css cst cta ctc cte ctg ctk ctr cts ctt eaa eac eae eag eak ear eas eat ec- eca ecc ece ecg eck ecr ecs ect eea eec eee eeg eek eer ees eet ega egc ege egg egr egs egt eka ekc eke ekg ekr eks ekt era erc ere erg erk err ers ert es- esa esc ese esg esk esr ess est eta etc ete etg etk etr ets ett gaa gac gae gag gak gar gas gat gca gcc gce gcg gck gcr gcs gct ge- gea gec gee geg gek ger ges get gga ggc ggg ggr ggs ggt gka gks gkt gra grc gre grg grk grr grs grt gsa gsc gse gsg gsk gsr gss gst gta gtc gte gtg gtk gtr gts gtt k-t ka- kaa kac kae kag kak kar kas kat kca kcc kce kcg kck kcr kcs kct ke- kea kec kee keg kek ker kes ket kga kgc kgs kkc kke kkk kkr kks kkt kra krc krg krk krr krs krt ksa ksc kse ksg ksk ksr kss kst kta ktc kte ktg ktk ktr kts ktt ra- raa rac rae rag rak rar ras rat rca rcc rce rcg rcr rcs rct re- rea rec ree reg rek rer res ret rga rgc rge rgg rgk rgr rgs rgt rkc rke rkg rkk rks rkt rra rrc rrg rrk rrr rrs rrt rsa rsc rse rsg rsk rsr rss rst rta rtc rte rtg rtk rtr rts rtt saa sac sae sag sak sar sas sat sca scc sce scg sck scr scs sct se- sea sec see seg sek ser ses set sga sgc sge sgg sgk sgr sgs sgt sk- ska skc ske skg skk skr sks skt sr- sra src sre srg srk srr srs srt ss- ssa ssc sse ssg ssk ssr sss sst sta stc ste stg stk str sts stt taa tac tae tag tak tar tas tat tca tcc tce tcg tck tcr tcs tct te- tea tec tee teg tek ter tes tet tga tgc tge tgg tgk tgr tgs tgt tka tkc tke tkg tkk tkr tks tkt tra trc tre trg trk trr trs trt tsa tsc tse tsg tsk tsr tss tst tta ttc tte ttg ttk ttr tts ttt

-ase a-ak aaaa aaac aaae aaar aaas aaca aacc aace aack aacr aacs aact aaea aaec aaes aage aaka aake aara aarc aare aars aart aasa aasc aase aass aast aata aatc aatk aatt ac-t acaa acac acae acag acar acas acat acca accc acce accs acct ace- acea acec acek acer aces acet acga acgr acgs acke acks acr- acra acrc acre acrr acrs acsa acsc acse acss acst acta actc acte actg acts actt aeac aeas aect aeer aega aeka aer- aera aerc aers aesc aess aest aeta aetc aetr aett agac agag agar agas agat agca agcc agce agct agea agee ager ages aget agga agge agra agre agsa agsg agst agta agte agtr agts akaa akae akar akas akca akee akeg aker akes akka akr- akra akre aksa akst akte arac arae arag arak arar aras arat arc- arca arce arcs arct area arec aree areg arek ares aret arga arge args arka arke arks arr- arra arrc arre arrg arrk arrr arrs arrt ars- arsa arsc arse arsk arst arta artc arte artr arts asaa asac asae asag asak asar asas asat asc- asca ascc asce ascr asct asea asec asee asek aser ases aset asge asgt aska aske askr asks askt asra asrc asrg asrs assa assc asse assk assr asss asst asta astc aste astr asts at-t ataa atac atae atak atar atas atat atca atcc atck atcr atcs atea atec atee ater ates atka atkt atra atrc atre atrk atsc atse atst atta atte attr atts caaa caac caas caat cac- caca cacc cace cack cacr caec caer caes caga cage cagg cagr cags caka cake cara carc care cark carr cars cart casa casc case cask casr cass cast cat- cata catc cate cats catt ccaa ccac ccag ccar ccas ccat ccca cccc cccs ccee ccga ccgc ccgs ccgt ccra ccrc ccre ccrg ccrs ccrt ccsa ccsg ccss ccst cctc cctt ceac cear ceas ceat cec- ceca cece cecs cect ceec cees cege ceke cer- cera cerc cere cers cert cesa cesc cese cesg cesr cess cest cet- ceta cete cets cgac cgas cgcc cgcg cger cges cggs cgss cgst ckac ckat ckck ckcs cker ckga ckrc cksa ckst ckts crac crag crar cras crat crca crcc crce crcr cre- crea crec cree creg cres cret crgs crkc crrt crsa crss crst crtc crts csaa csac csak csar csas csat cscc csce cscr cscs csea csec csee cser cset cska csks csra csrc csrs cssa csse cssr csta cstc cstg cstr csts ctae ctag ctca ctec ctge ctrc ctrs ctsa ctsc ctss ctta ctts eaca eacc eaec eaga eage eara eare ears eart easa ease east eata eate eats ecaa ecac ecar ecat ecca eccc ecce ecct eces ecgs ecka ecks ecra ecrc ecrr ecsa ecsc ecse ecss ect- ecta ectc ects eeca eecs eeea eeee eees eega eegs eeka eeke eeks eera eerc eerg eers eese eesk eeta eetc eete eets egaa