-al -ol a-a a-b aaa aab aaf aak aal aao aar aas ab- aba abb abf abk abl abo abr abs af- afa afb aff afk afl afo afr afs aka akb akk akl ako akr aks al- ala alb alf alk all alo alr als aoa aob aof aok aol aoo aor aos ar- ara arb arf ark arl aro arr ars as- asa asb asf ask asl aso asr ass baa bab baf bak bal bao bar bas bba bbb bbf bbk bbl bbo bbr bbs bfa bfb bff bfl bfo bfr bfs bka bkb bkf bkk bkl bko bkr bks bla blb blf blk bll blo blr bls boa bob bof bok bol boo bor bos bra brb brf brk brl bro brr brs bsa bsb bsf bsk bsl bso bsr bss faa fab faf fak fal fao far fas fba fbb fbf fbk fbl fbo fbr fbs ffa fff ffk ffl ffo ffr ffs fka fkb fkf fkk fkl fla flb flf fll flo flr fls foa fob fof fok fol foo for fos fra frb frf frk frl fro frr frs fsa fsb fsf fsk fsl fso fsr fss ka- kaa kab kaf kak kal kao kar kas kba kbb kbf kbk kbl kbo kbr kbs kfa kff kfo kfs kkb kkk kkl kkr kks kl- kla klb klf klo klr kls koa kob kof kok kol koo kor kos kra krf krk krl kro krr krs ksa ksb ksf ksk ksl kso ksr kss la- laa lab laf lak lal lao lar las lba lbb lbf lbk lbl lbo lbr lbs lfa lfb lff lfk lfl lfo lfr lfs lka lkb lkl lkr lks lla llb llf llk lll llo llr lls loa lob lof lok lol loo lor los lra lrb lrf lrk lro lrr lrs lsa lsb lsf lsk lsl lso lsr lss oaa oab oaf oak oal oao oar oas ob- oba obb obf obk obl obo obr obs of- ofa ofb off ofl ofo ofr ofs oka okb okk okl oko okr oks ola olb olf olk oll olo ols oo- ooa oob oof ook ool ooo oor oos or- ora orb orf ork orl oro orr ors os- osa osb osf osk osl oso osr oss ra- raa rab raf rak ral rao rar ras rba rbb rbf rbk rbl rbo rbr rbs rfa rfb rff rfk rfl rfo rfr rfs rkb rkf rkk rko rks rla rlf rll rlo rlr rls roa rob rof rok rol roo ror ros rra rrb rrf rrk rrl rrr rrs rsa rsb rsf rsk rsl rso rsr rss saa sab saf sak sal sao sar sas sba sbb sbf sbk sbl sbo sbr sbs sfa sfb sff sfk sfl sfo sfr sfs sk- ska skb skf skk skl sko skr sks sla slb slf slk sll slo slr sls soa sob sof sok sol soo sor sos sr- sra srb srf srk srl sro srr srs ss- ssa ssb ssf ssk ssl sso ssr sss

a-ak a-ok aaaa aaab aaaf aaal aaar aaas aaba aabb aabl aafa aafb aaff aafl aaka aala aall aalo aals aaoo aara aaro aars aasa aasf aass abaa abab abaf abak abal abar abas abb- abba abbb abbo abbr abbs abff abla ablo abls aboa abob abof abok abol aboo abor abos abra abro abrs abs- absa absf absl abss afaa afak afao afar afbs affa affo affs afka afkr afla afoa afol afoo afor afr- afra afro afrs afsa afsb akaa akal akao akar akas akka akko aklo akok akos akr- akra aksa alaa alak alal alao alar alas alb- alba albo albs alfa alfs alk- alka alkb alko all- alla alll allo allr alls aloa alof alok alol aloo alor alos alro alsa also aoba aoks aola aora aorb aors aoss arab araf arak aral arar aras arba arbs arfa arfb arff arfs arka arko arks arla arlo aroa arob aroo aror aros arr- arra arrk arro arrr arrs ars- arsa arsk arso asaa asab asaf asak asal asao asar asas asba asbo asfa aska asko askr asks asla aslo aslr asob asof asok asor asos asra asro asrs assa assk assl asso assr asss baaa baaf baak baal baar baas baba babb babo babr babs baff bafo bak- baka bakl bako bakr baks bala balf balk ball balo bals baol baos bar- bara barb barf bark baro barr bars basa basf bask baso bass bbas bbbb bbbs bblb bbls bfas bffl bffs bfsr blaa blab blak blas blkb blls blob blok bloo blss boab boak boal boar boas boba bobb bobo bobs bofa boff bofs boka boko boks bola bolk boll bolo bols boob boof book bool boor boos bor- bora borf bork boro borr bors bosa bosk boso boss brab braf brak brao bras brka brkb brls broa brob brok brol broo bror bros brrr brrs brsb brsr bsaa bsas bsfa bsff bsfs bsos bsra f--k faaa faas faba fabo fabs fafa faff fafo fako fala falk fall falo fals fara farb fark farl faro farr fars fasa faso fass fbar fbla fbrs ffar ffff ffrr ffsa ffss fkab flab flak flao flob flok floo flor flos foaf foak foal foar foba fobs fofo fola folk foll folo folr fols foof fook fool foos for- fora forb fork forl foro forr fors fosa fosb foso foss frab frak fras frla frob frol fros frsb frso fsas fsfo fsra fssa fssf k-lo k-os kaaa kaab kaaf kaak kaal kaar kaas kaba kabb kabf kabo kabr kafa kaff kafr kafs kaka kakk kako kaks kala kalb kalf kalk kall kalo kals kaoa kaok kaol kaor kaos kara karb karf kark karl karo karr kars kas- kasa kasb kasf kask kasl kaso kasr kass kbaa kbab kbak kbal kbar kbas kbba kbbb kbbf kbbk kbbl kbbo kbbr kbbs kbfb kbff kbfk kbfl kbfo kbfr kbfs kbkb kbkf kbkk kbkl kbko kbkr kbla kblb kblf kbll kblo kblr kbls kboa kbob kbok kboo kbos kbra kbrb kbrf