a-fu aaaa aaab aaac aaaf aaal aaas aaba aabb aabc aabl aabt aaca aacb aacc aacf aacl aacs aact aacu aafa aafb aafc aaff aafl aala aalc aall aals aalu aasa aasc aasf aass aast aasu aata aatc aatf aatt aaus abaa abab abac abaf abal abas abat abau abb- abba abbb abbs abbt abca abcb abcc abcf abcl abcs abct abff abla abls abs- absa absf absl abss absu abta abts abtu abua abuf abul abus abut ac-t acaa acab acac acas acat acba acbl acca accc accf accs acct accu acfc acfl acfs acft acla aclc acls aclu acsa acsc acsl acss acst acta actc actf actl acts actt actu acu- acuf acul acus acut afaa afat afbs afca afcb afcc afcs afcu affa affc affs afft afla aflc afsa afsb afsc afst afta aftc afts afua afus alaa alac alal alas alat alau alb- alba albc albs albu alca alcc alcs alfa alfs all- alla alll alls allu alsa alsc alst alta alts alua aluf alus alut asaa asab asac asaf asal asas asat asau asba asbu asc- asca ascb ascc ascl asct asfa asla assa assc assl asss asst assu asta astb astc astl asts asub asus at-l at-t ataa atab atac atal atas atat atbs atca atcc atcf atcl atcs atfb atfc atfs atla atls atsb atsc atst atta atts attu atua atub atuc atul atus auaa auca auct aufc aufs aul- aula aulf aull auls ault aulu ausa aust ausu aut- auts baaa baaf baal baas baat baba babb babs babu bac- baca bacc bacs bact bafc baff baft bala balc balf ball bals balt balu basa basc basf bass bast basu bata batc batf bats batt batu bau- bauf baul bbas bbau bbbb bbbs bbfc bblb bbls bcaa bcas bcat bcbc bcbs bcca bccc bccl bccs bcfc bcsa bcsc bcsl bcss bctc bcts bcuc bfas bfca bfcs bffl bffs bfta bfts bftt blaa blab blac blas blat blau blbt blcu blfc blls blss blst blts blub bluf blus blut bsaa bsac bsas bsat bscs bsfa bsfc bsff bsfs bslc bssc bsts btaa btaf btcc btcl btcs btfc btla btss bttb btus bual buat buba bubb bubs bubu buca bucc bucs bucu bufc buff bula bulb bull buls bult bulu busa busc buss bust busu but- buta buts butt buus caaa caab caac caaf caal caas caat caba cabf cabs cabu cac- caca cacc cafa cafb cafc caff cafl cafs cafu cala calc calf call cals calt calu casa casb casc casl cass cast casu cat- cata catb catc catf cats catt catu cauc cauf caul caus caut cbac cbal cbat cbbc cbbs cbca cbcc cbcl cbcs cbct cbcu cbfb cbfc cblb cblc cbsa cbsc cbta cbtc cbtf cbtl cbus ccaa ccab ccac ccaf ccas ccat ccba ccbc ccca cccb cccc cccf cccl cccs cccu ccfa ccfc ccff ccfl ccla cclc ccls ccsa ccsf ccsl ccss ccst cctb cctc cctl cctt ccuc ccus ccut cfaa cfab cfac cfbc cfbs cfbt cfca cfcb cfcf cfcl cfcs cffb cfls cfsa cfsl cfta cftc cftl clab claf clas clat clau clsa clsc cltb cltc clts club clut csaa csab csac csas csat csbf cscb cscc cscf cscl cscs csfc csla cslu cssa csta cstc csts csua csuf csus ctab ctal ctba ctbs ctca ctcf ctfc ctfs ctls ctsa ctsc ctss ctsu ctta ctts cuau cub- cuba cubb cubs cuca cucc cufa cufc cuff cula culb culc cull culs cult cusa cusb cuss cust cusu cut- cuta cutc cuts cutt faaa faac faas faba fabs fabu faca facc facs fact fafa fafc faff fala falc fall fals falt falu fasa fasc fass fast fata fatc fatf fats fatt faul faut fbla fbus fcab fcal fcas fcat fcba fcbs fcca fccf fcsc fcsl fcst ffcc ffff ffsa ffss fftf flab flac flat flcl flts flub fluf flus fsas fscb fscc fssa fssc fssf fsta ft-c ft-l ftfc ftlb ftsa ftub ftuc fuat fubb fubs fubu fuc- fuca fuct fufc fuff fufu fula full fuls fulu fusa fusc fuss fust fusu futa futs futu laaa laac laal laas laat laba labs labu laca lacc lacl lacs lact lacu lafb lafc laff laft lala lall lalu lasa lass last lasu lata latc lats latt latu laub lauf laul laus laut lbcc lbsc lcac lcat lcbc lcca lccc lccs lcfc lcls lcsc lctl lcts lfat lfca lfcc lfts llat llbs llcc llcs lllc llll lsat lsbu lscb lscs lsfc lsla lssa lsts ltac ltbf ltbl ltcc ltcs ltfc ltsa lttc ltuc luas luau luba lubs luca lucs luff luft lufu lula lull lulu lusa luss lust luta luts luua sa-c saab saac saaf saal saas saat saba sabb sabc sabs sabu saca sacc sacs sact sacu safa safb safc saff saft safu sala salc salf sall sals salt salu sasa sasc sasf sasl sass sast sata satb satc satl sats satt satu saua sauc sauf saul saus saut sbaa sbac sbas sbbs sbca sbcc sbcs sbct sbfc sbsa sbst sbtc sbus scaa scab scac scaf scal scas scat scba sccc sccl sccs scct scfa scfc scl- sclc scls scsa scsc scsl scst scsu sctc sctl scts scua scub scul scut sfas sfba sfbc sfca sfcc sfcs sffc sfla sflc sfls sfss sfsu sfts slaa slab slac slaf slas slat slau slcc slcu slft slsa slsc slst slsu slts slub sluc slut ssaa ssab ssac ssas ssat ssau ssca sscc sscs ssfc ssfl ssla sslc sslt sssa sssb sssc sssf ssss ssta sstb sstc sstl ssts stab stac stal stas stat stau stbc stbs stca stcc stcs stcu stfc stfu stlc stlt stsf stss sttc stub stuc stuf stul stus stut suas suat sub- suba subb subl subs suc- succ sucs suf- sufa sufc suff sufs sufu sul- sula sulc sulf sull sult sulu sus- susa suss sust susu suta sutu suus taa- taaf taal taas taat taba tabb tabc tabl tabs tabu taca tacc tacl tacs tact tafa tafc taff taft tala talc tall tals talu tasa tasb tasc tass tast tasu