-er a-a a-c a-t aaa aac aae aag aak aao aap aar aat ac- aca acc ace acg ack aco acp acr act aea aec aee aeg aek aeo aep aer aet ag- aga agc age agg agk ago agp agr agt aka akc ake akg akk ako akp akr aoa aoc aoe aog aok aoo aop aor aot ap- apa apc ape apg apk apo app apr apt ar- ara arc are arg ark aro arp arr art at- ata atc ate atg ato atp atr att c-- caa cac cae cag cak cao cap car cat cca ccc cce ccg cck cco ccp ccr cct ce- cea cec cee ceg cek ceo cep cer cet cga cgc cge cgg cgo cgp cgr cgt cka ckc cko ckt co- coa coc coe cog cok coo cop cor cot cpa cpc cpe cpg cpk cpo cpp cpr cpt cra crc cre crg crk cro crp crr crt cta ctc cte ctg ctk cto ctp ctr ctt eaa eac eae eag eak eao eap ear eat ec- eca ecc ece ecg eck eco ecr ect eea eec eee eeg eek eeo eep eer eet ega egc ege egg ego egp egr egt eka ekc eke ekg eko ekp ekr ekt eo- eoa eoc eoe eog eok eoo eop eor eot ep- epa epc epe epg epo epp epr ept era erc ere erg erk ero erp err ert eta etc ete etg etk eto etp etr ett g-p gaa gac gae gag gak gao gap gar gat gca gcc gce gcg gck gco gcp gcr gct ge- gea gec gee geg gek geo gep ger get gga ggc ggg ggo ggp ggr ggt gka gko gkp gkt goa goc goe gog gok goo gop gor got gpa gpc gpe gpg gpk gpo gpp gpr gpt gra grc gre grg grk gro grp grr grt gta gtc gte gtg gtk gto gtp gtr gtt k-t ka- kaa kac kae kag kak kao kap kar kat kca kcc kce kcg kck kcp kcr kct ke- kea kec kee keg kek keo kep ker ket kga kgc kgo kgp kkc kke kkk kkp kkr kkt koa koc koe kog kok koo kop kor kot kpa kpc kpe kpk kpo kpp kpr kpt kra krc krg krk kro krp krr krt kta ktc kte ktg ktk kto ktp ktr ktt oaa oac oae oag oak oao oap oar oat oc- oca occ ocg ock oco ocp ocr oct oea oec oee oeg oeo oep oer oet oga ogc oge ogg ogo ogp ogt oka okc oke okg okk oko okp okr oo- ooa ooc oog ook ooo oop oor oot op- opa opc ope opg opk opo opp opr opt or- ora orc ore org ork oro orp orr ort ot- ota otc ote otg otk oto otp otr ott p-p paa pac pae pag pak pao pap par pat pca pcc pce pcg pck pco pcp pcr pct pea pec pee peg pek peo pep per pet pga pgc pge pgg pgk pgo pgp pgr pgt pka pkc pke pkg pko pkp pkr pkt poa poc poe pog pok poo pop por pot ppa ppc ppe ppg ppk ppo ppp ppr ppt pra prc pre prg prk pro prp prr prt pt- pta ptc pte ptg ptk pto ptp ptr ptt ra- raa rac rae rag rak rao rap rar rat rca rcc rce rcg rco rcp rcr rct re- rea rec ree reg rek reo rep rer ret rga rgc rge rgg rgk rgo rgp rgr rgt rkc rke rkg rkk rko rkp rkt roa roc roe rog rok roo rop ror rot rpa rpc rpe rpg rpk rpo rpp rpr rpt rra rrc rrg rrk rrp rrr rrt rta rtc rte rtg rtk rto rtp rtr rtt taa tac tae tag tak tao tap tar tat tca tcc tce tcg tck tco tcp tcr tct te- tea tec tee teg tek teo tep ter tet tga tgc tge tgg tgk tgo tgp tgr tgt tka tkc tke tkg tkk tko tkp tkr tkt to- toa toc toe tog tok too top tor tot tpa tpc tpe tpg tpk tpo tpp tpr tpt tra trc tre trg trk tro trp trr trt tta ttc tte ttg ttk tto ttp ttr ttt

a-ak a-ok aaaa aaac aaae aaap aaar aaca aacc aace aack aaco aacp aacr aact aaea aaec aaep aage aaka aake aaoe aaoo aapa aapc aapo aapt aara aarc aare aaro aarp aart aata aatc aatk aatt ac-t acaa acac acae acag acap acar acat acca accc acce acco accp acct ace- acea acec acek acer acet acga acgr acke acoa acoe acog acop acor acot acpa acpe acpr acpt acr- acra acrc acre acro acrr acta actc acte actg acto actt aeac aeap aect aeer aega aeka aer- aera aerc aero aeta aetc aeto aetr aett ag-o agac agag agao agap agar agat agca agcc agce agco agct agea agee agep ager aget agga agge agog agoo agot agra agre agro agrp agta agte agtr akaa akae akao akap akar akca akee akeg aker akka akko akok akot akpo akr- akra akre akte aoca aoce aokp aopo aora aort aotc apac apak apao apap apar apat apca apcc apco apcr apea apec apeg apep aper apet apga apke apo- apoc apoe apoo apop apor apot appa appc appr appt apra aprc apre apro aprt apta aptc apte aptt arac arae arag arak arap arar arat arc- arca arce arco arct area arec aree areg arek areo arep aret arga arge argo arka arke arko aroa aroe aroo aror arpa arpe arr- arra arrc arre arrg arrk arro arrr arrt arta artc arte arto artr at-t ataa atac atae atak atap atar atat atca atcc atck atco atcr atea atec atee ateo atep ater atgo atka atkt atoc atoe atok atop ator atot atpr atra atrc atre atrk atro atrp atta atte atto attp attr caaa caac caap caat cac- caca cacc