-al -ol a-a a-c aaa aac aaf aak aal aao aar aas ac- aca acc acf ack acl aco acr acs af- afa afc aff afk afl afo afr afs aka akc akk akl ako akr aks al- ala alc alf alk all alo alr als aoa aoc aof aok aol aoo aor aos ar- ara arc arf ark arl aro arr ars as- asa asc asf ask asl aso asr ass c-- caa cac caf cak cal cao car cas cca ccc ccf cck ccl cco ccr ccs cfa cfc cff cfk cfl cfo cfr cfs cka ckc cko cks cl- cla clc clf clk cll clo clr cls co- coa coc cof cok col coo cor cos cra crc crf crk crl cro crr crs csa csc csf csk csl cso csr css faa fac faf fak fal fao far fas fca fcc fcf fck fcl fco fcr fcs ffa ffc fff ffk ffl ffo ffr ffs fka fkc fkf fkk fkl fla flc flf fll flo flr fls foa foc fof fok fol foo for fos fra frc frf frk frl fro frr frs fsa fsc fsf fsk fsl fso fsr fss ka- kaa kac kaf kak kal kao kar kas kca kcc kck kcl kcr kcs kfa kfc kff kfo kfs kkc kkk kkl kkr kks kl- kla klc klf klo klr kls koa koc kof kok kol koo kor kos kra krc krf krk krl kro krr krs ksa ksc ksf ksk ksl kso ksr kss la- laa lac laf lak lal lao lar las lca lcc lcf lck lcl lco lcr lcs lfa lfc lff lfk lfl lfo lfr lfs lka lkl lkr lks lla llc llf llk lll llo llr lls loa loc lof lok lol loo lor los lra lrc lrf lrk lro lrr lrs lsa lsc lsf lsk lsl lso lsr lss oaa oac oaf oak oal oao oar oas oc- oca occ ocf ock ocl oco ocr ocs of- ofa ofc off ofl ofo ofr ofs oka okc okk okl oko okr oks ola olc olf olk oll olo ols oo- ooa ooc oof ook ool ooo oor oos or- ora orc orf ork orl oro orr ors os- osa osc osf osk osl oso osr oss ra- raa rac raf rak ral rao rar ras rca rcc rcf rcl rco rcr rcs rfa rfc rff rfk rfl rfo rfr rfs rkc rkf rkk rko rks rla rlc rlf rll rlo rlr rls roa roc rof rok rol roo ror ros rra rrc rrf rrk rrl rrr rrs rsa rsc rsf rsk rsl rso rsr rss saa sac saf sak sal sao sar sas sca scc scf sck scl sco scr scs sfa sfc sff sfk sfl sfo sfr sfs sk- ska skc skf skk skl sko skr sks sla slc slf slk sll slo slr sls soa soc sof sok sol soo sor sos sr- sra src srf srk srl sro srr srs ss- ssa ssc ssf ssk ssl sso ssr sss

a-ak a-ok aaaa aaac aaaf aaal aaar aaas aaca aacc aacf aack aacl aaco aacr aacs aafa aafc aaff aafl aaka aala aalc aall aalo aals aaoo aara aarc aaro aars aasa aasc aasf aass acaa acac acar acas acca accc accf acco accs acfc acfl acfs acks acla aclc aclr acls acoa acol acor acos acr- acra acrc acro acrr acrs acsa acsc acsl acss afaa afak afao afar afca afcc afcs affa affc affo affs afka afkr afla aflc afoa afol afoo afor afr- afra afrc afro afrs afsa afsc akaa akal akao akar akas akca akka akko aklo akok akos akr- akra aksa alaa alac alak alal alao alar alas alca alcc alco alcs alfa alfs alk- alka alko all- alla alll allo allr alls aloa aloc alof alok alol aloo alor alos alro alsa alsc also aoca aocs aoks aola aora aors aoss arac araf arak aral arar aras arc- arca arco arcs arfa arfc arff arfs arka arko arks arla arlo aroa aroo aror aros arr- arra arrc arrk arro arrr arrs ars- arsa arsc arsk arso asaa asac asaf asak asal asao asar asas asc- asca ascc ascl asco ascr asfa aska asko askr asks asla aslo aslr asoc asof asok asor asos asra asrc asro asrs assa assc assk assl asso assr asss caaa caac caaf caal caas cac- caca cacc cack caco cacr cafa cafc caff cafl cafs caka cala calc calf calk call calo cals caol caor caos cara carc carf cark carl caro carr cars casa casc cask casl caso casr cass ccaa ccac ccaf ccar ccas ccca cccc cccf cccl cccs ccfa ccfc ccff ccfl ccla cclc ccls ccoc ccra ccrc ccrf ccrl ccrs ccsa ccsf ccsl ccss cfaa cfac cfao cfar cfca cfcf cfcl cfco cfcs cffr cfls cfoa cfor cfos cfra cfsa cfsl ckac ckck ckcl ckco ckcs ckfr cklf ckoa ckoc ckoo ckor ckos ckrc cksa cksl ckso claf clar clas clof clok cloo clor clos clra clro clrs clsa clsc coak coal coas coca cock coco cofc coff cofs cok- coka coko col- cola colk coll colo cols coof cook cool coos cor- cora corc corf cork corl coro corr cors cosa cosc cosl coso coss crac craf crar cras crca crcc crcr crfc crfl crfs crkc crkl crlf crls croc crok crol croo cror crsa crss csaa csac csak csao csar csas cscc cscf cscl csco cscr cscs csfc csfr cska csks csla cslr csor csos csra csrc csrs cssa cssr f--k faaa faac faas faca facc fack facs fafa fafc faff fafo fako fala falc falk fall falo fals fara farc fark farl faro farr fars fasa fasc faso fass fcal fcar fcas fcca fccf fcra fcsc fcsl ffar ffcc ffff ffrr ffsa ffss flac flak flao flcl floc flok floo flor flos foaf foak foal foar foca fock foco focs fofo fola folc folk foll folo folr fols foof fook fool foos for- fora fork forl foro forr fors