a-a a-c a-t aaa aac aaf aak aao aar aas aat ac- aca acc acf ack aco acr acs act af- afa afc aff afk afo afr afs aft aka akc akk ako akr aks aoa aoc aof aok aoo aor aos aot ar- ara arc arf ark aro arr ars art as- asa asc asf ask aso asr ass ast at- ata atc atf ato atr ats att c-- caa cac caf cak cao car cas cat cca ccc ccf cck cco ccr ccs cct cfa cfc cff cfk cfo cfr cfs cft cka ckc cko cks ckt co- coa coc cof cok coo cor cos cot cra crc crf crk cro crr crs crt csa csc csf csk cso csr css cst cta ctc ctf ctk cto ctr cts ctt faa fac faf fak fao far fas fat fca fcc fcf fck fco fcr fcs fct ffa ffc fff ffk ffo ffr ffs fft fka fkc fkf fkk fkt foa foc fof fok foo for fos fot fra frc frf frk fro frr frs frt fsa fsc fsf fsk fso fsr fss fst fta ftc ftf ftk fto ftr fts ftt k-t ka- kaa kac kaf kak kao kar kas kat kca kcc kck kcr kcs kct kfa kfc kff kfo kfs kkc kkk kkr kks kkt koa koc kof kok koo kor kos kot kra krc krf krk kro krr krs krt ksa ksc ksf ksk kso ksr kss kst kta ktc ktf ktk kto ktr kts ktt oaa oac oaf oak oao oar oas oat oc- oca occ ocf ock oco ocr ocs oct of- ofa ofc off ofo ofr ofs oft oka okc okk oko okr oks oo- ooa ooc oof ook ooo oor oos oot or- ora orc orf ork oro orr ors ort os- osa osc osf osk oso osr oss ost ot- ota otc otf otk oto otr ots ott ra- raa rac raf rak rao rar ras rat rca rcc rcf rco rcr rcs rct rfa rfc rff rfk rfo rfr rfs rft rkc rkf rkk rko rks rkt roa roc rof rok roo ror ros rot rra rrc rrf rrk rrr rrs rrt rsa rsc rsf rsk rso rsr rss rst rta rtc rtf rtk rto rtr rts rtt saa sac saf sak sao sar sas sat sca scc scf sck sco scr scs sct sfa sfc sff sfk sfo sfr sfs sft sk- ska skc skf skk sko skr sks skt soa soc sof sok soo sor sos sot sr- sra src srf srk sro srr srs srt ss- ssa ssc ssf ssk sso ssr sss sst sta stc stf stk sto str sts stt taa tac taf tak tao tar tas tat tca tcc tcf tck tco tcr tcs tct tfa tfc tff tfk tfo tfr tfs tft tka tkc tkk tko tkr tks tkt to- toa toc tof tok too tor tos tot tra trc trf trk tro trr trs trt tsa tsc tsf tsk tso tsr tss tst tta ttc ttf ttk tto ttr tts ttt

a-ak a-ok aaaa aaac aaaf aaar aaas aaca aacc aacf aack aaco aacr aacs aact aafa aafc aaff aaka aaoo aara aarc aaro aars aart aasa aasc aasf aass aast aata aatc aatf aatk aatt ac-t acaa acac acar acas acat acca accc accf acco accs acct acfc acfs acft acks acoa acor acos acot acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc actf acto acts actt afaa afak afao afar afat afca afcc afcs affa affc affo affs afft afka afkr afoa afoo afor afr- afra afrc afro afrs afsa afsc afst afta aftc afts akaa akao akar akas akca akka akko akok akos akot akr- akra aksa akst aoca aocs aoks aora aors aort aoss aotc aotf arac araf arak arar aras arat arc- arca arco arcs arct arfa arfc arff arfs arft arka arko arks aroa aroo aror aros arr- arra arrc arrk arro arrr arrs arrt ars- arsa arsc arsk arso arst arta artc arto artr arts asaa asac asaf asak asao asar asas asat asc- asca ascc asco ascr asct asfa aska asko askr asks askt asoc asof asok asor asos asot asra asrc asro asrs assa assc assk asso assr asss asst asta astc asto astr asts at-t ataa atac atak atar atas atat atca atcc atcf atck atco atcr atcs atfc atfs atka atkt atoc atof atok ator atos atot atra atrc atrk atro atsc atst atta atto attr atts caaa caac caaf caas caat cac- caca cacc cack caco cacr cafa cafc caff cafs caka caor caos cara carc carf cark caro carr cars cart casa casc cask caso casr cass cast cat- cata catc catf cato cats catt ccaa ccac ccaf ccar ccas ccat ccca cccc cccf cccs ccfa ccfc ccff ccoc ccra ccrc ccrf ccrs ccrt ccsa ccsf ccss ccst cctc cctt cfaa cfac cfao cfar cfca cfcf cfco cfcs cffr cfoa cfor cfos cfra cfrt cfsa cfta cftc cftk cftr ckac ckat ckck ckco ckcs ckfr ckoa ckoc ckoo ckor ckos ckot ckrc cksa ckso ckst ckts coak coas coat coca cock coco coct cofc coff cofs coft cok- coka coko coof cook coos coot cor- cora corc corf cork coro corr cors cort cosa cosc coso coss cost cota cotc coto cots cott crac craf crar cras crat crca crcc crcr crfc crfs crkc croc crok croo cror crot crrt crsa crss crst crtc crtf crts csaa csac csak csao csar csas csat cscc cscf csco cscr cscs csfc csfr cska csks csor csos csot csra csrc csrs cssa cssr csta cstc csto cstr csts ctca ctcf ctfc ctfo ctfs ctor ctos ctot ctrc ctrs ctsa ctsc ctss ctta ctts f--k faaa faac faas faca facc fack facs fact fafa fafc faff fafo fako fakt fara farc fark faro farr fars fart fasa fasc faso fass fast fata fatc fatf fato fats fatt fcar fcas fcat fcca fccf fcot fcra fcsc fcst fcto ffar