-al a-a a-b a-c aaa aab aac aal aas aau ab- aba abb abc abl abs abu ac- aca acb acc acl acs acu al- ala alb alc all als alu as- asa asb asc asl ass asu au- aua aub auc aul aus b-u baa bab bac bal bas bau bba bbb bbc bbl bbs bbu bca bcb bcc bcl bcs bcu bla blb blc bll bls blu bsa bsb bsc bsl bss bsu bua bub buc bul bus buu c-- caa cab cac cal cas cau cba cbb cbc cbl cbs cbu cca ccb ccc ccl ccs ccu cl- cla clb clc cll cls clu csa csb csc csl css csu cua cub cuc cul cus cuu la- laa lab lac lal las lau lba lbb lbc lbl lbs lbu lca lcb lcc lcl lcs lcu lla llb llc lll lls llu lsa lsb lsc lsl lss lsu lua lub luc lul lus luu saa sab sac sal sas sau sba sbb sbc sbl sbs sbu sca scb scc scl scs scu sla slb slc sll sls slu ss- ssa ssb ssc ssl sss ssu sua sub suc sul sus suu ua- uaa uab uac ual uas uau uba ubb ubc ubl ubs ubu uca ucb ucc ucl ucs ucu ula ulb ulc ull uls ulu usa usb usc usl uss usu uua uuc uus uuu

aaaa aaab aaac aaal aaas aaba aabb aabc aabl aaca aacb aacc aacl aacs aacu aala aalc aall aals aalu aasa aasc aass aasu aaus abaa abab abac abal abas abau abb- abba abbb abbs abca abcb abcc abcl abcs abla abls abs- absa absl abss absu abua abul abus acaa acab acac acas acba acbl acca accc accs accu acla aclc acls aclu acsa acsc acsl acss acu- acul acus alaa alac alal alas alau alb- alba albc albs albu alca alcc alcs all- alla alll alls allu alsa alsc alua alus asaa asab asac asal asas asau asba asbu asc- asca ascb ascc ascl asla assa assc assl asss assu asub asus auaa auca aul- aula aull auls aulu ausa ausu baaa baal baas baba babb babs babu bac- baca bacc bacs bala balc ball bals balu basa basc bass basu bau- baul bbas bbau bbbb bbbs bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bcsa bcsc bcsl bcss bcuc blaa blab blac blas blau blcu blls blss blub blus bsaa bsac bsas bscs bslc bssc bual buba bubb bubs bubu buca bucc bucs bucu bula bulb bull buls bulu busa busc buss busu buus caaa caab caac caal caas caba cabs cabu cac- caca cacc cala calc call cals calu casa casb casc casl cass casu cauc caul caus cbac cbal cbbc cbbs cbca cbcc cbcl cbcs cbcu cblb cblc cbsa cbsc cbus ccaa ccab ccac ccas ccba ccbc ccca cccb cccc cccl cccs cccu ccla cclc ccls ccsa ccsl ccss ccuc ccus clab clas clau clsa clsc club csaa csab csac csas cscb cscc cscl cscs csla cslu cssa csua csus cuau cub- cuba cubb cubs cuca cucc cula culb culc cull culs cusa cusb cuss cusu laaa laac laal laas laba labs labu laca lacc lacl lacs lacu lala lall lalu lasa lass lasu laub laul laus lbcc lbsc lcac lcbc lcca lccc lccs lcls lcsc llbs llcc llcs lllc llll lsbu lscb lscs lsla lssa luas luau luba lubs luca lucs lula lull lulu lusa luss luua sa-c saab saac saal saas saba sabb sabc sabs sabu saca sacc sacs sacu sala salc sall sals salu sasa sasc sasl sass saua sauc saul saus sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbus scaa scab scac scal scas scba sccc sccl sccs scl- sclc scls scsa scsc scsl scsu scua scub scul slaa slab slac slas slau slcc slcu slsa slsc slsu slub sluc ssaa ssab ssac ssas ssau ssca sscc sscs ssla sslc sssa sssb sssc ssss suas sub- suba subb subl subs suc- succ sucs sul- sula sulc sull sulu sus- susa suss susu suus uabc uaca uasa uaua ubac ubal ubba ubla ubls ucal ucas ucbc ucca ucla ucsa ucsb ucsc ucsu ucua ulaa ulas ulbc ulcc ulla ulsa ulua ulul ulus us-a usaa usac usal usas usba usbc usbl usbs usca uscc uscs uslu ussa ussb ussc usss ussu usua usul usus uulu uuuu

-aaa- aaaas aaasa aaass aabaa aabba aacbc aacsa aacsb aacsl aacss aacus abaab ababa ababs ababu abaca abacs abala aball abasa abass abbac abbas abcas abccc abula abull acaca acacb acala acall acass acaua accas accub accus aclla aclub acuba acula acusa alaba alaca alala alalu alasa alass alaus albac albal albas albul albus allal allas allss alluc allus alsab alula alull asaba asabc asala asall asasa asbca ascus aslab assab assac assal assas asubs auala auass aubas aucas aulas aulla aulus aussa auuls b-cas baalc baals baalu babas babau babbs babul babus bacab bacas bacca bacu bacul balac balal balas balca balla balls balsa balus basab basal basca bassa bassu baula bball bbuss bccsl blaas blabs blaca blacc blass blubs bsaba buala bubal bubas bubba bucal bucca bucsa bucsu bulas bulau bulb- bulba bulbs bull- bulla bulls bulul bulus busaa busal busca bussa bussu busua busuu c-a-c c-bus ca-ca caaba cabal cabas cabul cabus cacas cacau cacls cacu cacus calas calau calc- calca calcs calla callb calls casal casas casca casla casus cauac cauas cauca caul- cauls causa ccass ccccc cccsl claas clacl clacs clasa class claus clubb clubs cluss csaba cuaba cuala cubal cubas cubla cubub culbs culla culls cullu la-la labab labas labba labbu labus lacca lacub lacus lalab lalas lalla lalls lasal lasbu lasca lassa lassu lauba lauca lball llaas lluca lsccb luaus lubba lubla lucas lucca lucus lulab lulal lulla lulls lulua luluc lulul lulus lusas lusca lusus s-bus saaba saabs saala saasa saasu sabac sabal sabas sabau sabca sabla sabsa sabus sacas sacc- sacca sacla sacsa sacul salal salas salba salla salsa salss salua saluc salus sasca sassa sauba sauca