-ana a-un aaaa aaab aaac aaal aaan aaas aaba aabb aabc aabl aaca aacb aacc aacl aacn aacs aacu aala aalc aall aals aalu aana aasa aasc aass aasu aaus abaa abab abac abal aban abas abau abb- abba abbb abbs abca abcb abcc abcl abcn abcs abla abls abnu abs- absa absl abss absu abua abul abun abus acaa acab acac acan acas acba acbl acca accc accs accu acla aclc acls aclu acsa acsc acsl acss acu- acul acus alaa alac alal alan alas alau alb- alba albc albs albu alca alcc alcs all- alla alll alln alls allu alna alsa alsc alsn alua alun alus ana- anaa anab anac anal anan anas anau anba anbb anbl anbu anca ancc anla anlc anln anlu anna annb anns ansa ansu anua anub anul anun anus asaa asab asac asal asan asas asau asba asbu asc- asca ascb ascc ascl asla asnc asnl assa assc assl assn asss assu asub asun asus auaa auca aul- aula aull auln auls aulu auna ausa ausu baaa baal baan baas baba babb babs babu bac- baca bacc bacn bacs bala balc ball bals balu bana banc bann bans banu basa basc bass basu bau- baul bbas bbau bbbb bbbs bblb bbls bcaa bcas bcbc bcbs bcca bccc bccl bccs bcnu bcsa bcsc bcsl bcsn bcss bcuc blaa blab blac blan blas blau blcu blls blss blub blus bnas bnss bsaa bsac bsas bscs bslc bsns bssc bual buba bubb bubs bubu buca bucc bucs bucu bula bulb bull buls bulu buna bunb bunn buns bunu busa busc buss busu buus caaa caab caac caal caan caas caba cabs cabu cac- caca cacc cala calc call cals calu cana canc cann cans casa casb casc casl cass casu cauc caul caus cbac cbal cbbc cbbs cbca cbcc cbcl cbcn cbcs cbcu cblb cblc cbln cbna cbsa cbsc cbsn cbus ccaa ccab ccac ccas ccba ccbc ccbn ccca cccb cccc cccl cccs cccu ccla cclc ccls ccna ccnb ccnc ccns ccnu ccsa ccsl ccsn ccss ccuc ccus clab clan clas clau clsa clsc club clun cnaa cnac cnas cnbc cnbl cnna cnsa cnsl cnss csaa csab csac csas cscb cscc cscl cscs csla cslu cssa csua csus cuan cuau cub- cuba cubb cubs cuca cucc cucn cula culb culc cull culs cuna cusa cusb cuss cusu laaa laac laal laan laas laba labs labu laca lacc lacl lacs lacu lala lall lalu lan- lana lanc lann lans lanu lasa lass lasu laub laul laun laus lbcc lbsc lcac lcbc lcca lccc lccs lcls lcsc llan llbs llcc llcs lllc llll lsbu lscb lscs lsla lssa luan luas luau luba lubs luca lucs lula lull lulu luna lunn luns lusa luss luua naaa naab naac naal naan naas naba nabc nabl nabs nabu naca nacc nacl nacs nala nalc nall nals nalu nan- nana nanb nann nans nanu nas- nasa nasb nasc nasl nass nasu naul naus nbaa nbas nbbc nbca nbcc nbcs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs nccu nclc ncln ncna ncnc ncsa ncsc ncsl ncss ncua nlab nlcc nlcs nlls nlsc nnls nnnn nnsa nnsl nnss nsaa nsac nsca nscc nscl nscs nsla nsls nsna nssa nssb nssc nsss nsub nuan nuba nubc nubl nubs nuca nucs nucu null nuna nunc nunn nuns nusl nuss nusu sa-c saab saac saal saan saas saba sabb sabc sabs sabu saca sacc sacn sacs sacu sala salc sall sals salu sana sann sans sanu sasa sasc sasl sass saua sauc saul saun saus sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbus scaa scab scac scal scan scas scba sccc sccl sccs scl- sclc scls scna scsa scsc scsl scsn scsu scua scub scul scun slaa slab slac slan slas slau slcc slcu slln slsa slsc slsu slub sluc snab snas snba snca sncc snla snns snub snus ssaa ssab ssac ssan ssas ssau ssbn ssca sscc sscs ssla sslc ssns sssa sssb sssc ssss suan suas sub- suba subb subl subs suc- succ sucs sul- sula sulc sull sulu sun- suna sunb sunn suns sunu sus- susa suss susu suus uabc uaca uasa uaua ubac ubal ubba ubla ubls ucal ucan ucas ucbc ucca ucla ucsa ucsb ucsc ucsu ucua ulaa ulan ulas ulbc ulcc ulla ulna ulsa ulua ulul ulus unaa unac unal unan unas unau unca uncc uncl uncs unna unns uns- unsa unsc unus us-a usaa usac usal usan usas usba usbc usbl usbs usca uscc uscs uslu usna usnc usnu ussa ussb ussc usss ussu usua usul usun usus uulu uuuu