a-ii aaaa aaab aaac aaai aaap aaas aaba aabb aabc aabi aabp aabt aaca aacb aacc aaci aacp aacs aact aacu aaib aaic aaii aais aapa aapc aapi aaps aapt aasa aasc aasi aass aast aasu aata aatc aatt aaup aaus abaa abab abac abai abap abas abat abau abb- abba abbb abbi abbs abbt abca abcb abcc abci abcp abcs abct abia abib abic abis abit abiu abpa abpc abpi abpp abps abs- absa absi absp abss absu abta abts abtu abua abus abut ac-t acaa acab acac acai acap acas acat acba acca accc acci accp accs acct accu aci- acia acic acip acis acpa acpi acps acpt acpu acsa acsc acsi acss acst acta actc acti acts actt actu acu- acup acus acut aiai aias aiba aica aicc aicp aics aiia aiib aiic aipa aipi aips aisa aisb aisi aist aita aiti aits aitt aitu aiui apac apai apap apas apat apba apbs apca apcb apcc apcs api- apia apic apip apis apit appa appc apps appt appu apsa apsi apss apsu apta aptc apti apts aptt apua apuc apup apus asaa asab asac asai asap asas asat asau asba asbu asc- asca ascb ascc asci ascp asct asia asic asii asip asis asit aspa aspc aspi asps aspt assa assc assi assp asss asst assu asta astb astc asti astp asts asub asui asus at-t ataa atab atac atai atap atas atat atbs atca atcc atcs atia atic atip atis atit atiu atsb atsc atsi atst atta atti attp atts attu atua atub atuc atus auaa auca auci aucp auct auis aupc aups ausa aust ausu aut- auts ba-i baaa baas baat baba babb babi babs babu bac- baca bacc baci bacs bact baia baib baic bais bait bapa bapc bapi bapp baps bapt bapu basa basc basi bass bast basu bata batc bati bats batt batu bau- bbas bbau bbbb bbbs bbci bcaa bcap bcas bcat bcbc bcbp bcbs bcca bccc bcci bccs bcia bcis bcit bcpp bcps bcsa bcsc bcss bctc bcts bcuc bcup biap bias biat biba bibb bibi bibs bica bicc bici bics biis bipa bipp bips bipu bis- bisa bisc bisp biss bist bisu bita bitc bits bitt bitu bpai bpcp bpsa bpsu bpti bsaa bsac bsap bsas bsat bsci bscp bscs bsic bspp bssc bsts bsup btaa btbp btcc btcs btps btss bttb btus buat buba bubb bubi bubs bubu buca bucc buci bucs bucu buic buis buit buiu bupa bupc bups busa busc busi buss bust busu but- buta buti buts butt buus caaa caab caac caap caas caat caba cabi cabs cabu cac- caca cacc caci caia caib caic caip cais cait caiu capa capb capc capi capp caps capt capu casa casb casc casi casp cass cast casu cat- cata catb catc cati cats catt catu cauc caup caus caut cbac cbat cbbc cbbs cbca cbcc cbcp cbcs cbct cbcu cbia cbit cbpc cbpp cbsa cbsc cbsi cbta cbtc cbus ccaa ccab ccac ccai ccap ccas ccat ccba ccbc ccca cccb cccc ccci cccp cccs cccu ccic ccii ccip ccis ccpa ccpp ccps ccsa ccsi ccsp ccss ccst cctb cctc cctt ccuc ccup ccus ccut ciaa cias ciat ciau ciba cibc cibi cica cicc cici cics cict cicu ciia ciii ciis ciit cipa cipp cips cis- cisa cisc cisp ciss cist cita citb citi citp cits citt citu ciuc ciup cius cpaa cpac cpap cpas cpbc cpca cpcs cpcu cpia cpic cppa cpps cpsa cpsc cpsu cptp cpts cpus csaa csab csac csas csat cscb cscc csci cscs csia csib csis csit cspa cspb cspc cspi csps cspt cssa csta cstc csts csua csup csus ctab ctba ctbi ctbs ctca ctcp ctia ctic ctpp ctps ctsa ctsc ctss ctsu ctta ctts cuau cub- cuba cubb cubi cubs cuca cucc cuci cui- cuis cuit cupp cups cusa cusb cusp cuss cust cusu cut- cuta cutc cuts cutt iaaa iaac iaai iaap iaas iaat iaba iaca iacc iacp iacs iact iacu iaia iais iapa iapp iaps iapt iapu iasa iasc iasi iasp iata iatc iati ibac ibas ibat ibca ibcs ibia ibis ibsa ibss ibtb ibtc ibts ibus icaa icab icac icai icap icas icat icbc icbp icbs icca iccb iccc icci iccp iccs icct iccu icis icpa icpc icps icsa icsb icsc icsi icsp icss icst icta ictp icts icub icup icus iiac iias iica iiii iiis iiit iipa iisc iisi iisp iist iisu iita iitt iiuc ipac ipas ipat ipba ipca ipcc ipcs ipct ippa ippc ipsa ipsc ipsi ipsp ipss ipta iptc ipts ipus iput is-a isac isai isas isat isba isbt isca iscc isci iscp iscs isct iscu isia isic isis isit ispa ispc isps issa issc issi issp isss issu ista istc isti istp ists isua isup isus itaa itac itai itap itas itat itbs itcs itia itic itis itpa itpc itsa itsi itsp itsu itta itup iucc iuiu iupa iupp iuss iust paap paas paat paba pabt pabu paca paci pacs pact pacu paia paib paip pais pait papa papb papi papp paps pasa pasc pasi pasp pass past pata pati pats patt patu paua paup paus paut pbac pbcc pbpa pbsa pbsp pcaa pcap pcas pcba pcbc pcbs pcca pccc pccs pcia pcip pcpb pcpp pcps pcsa pcts piai pias piat piau pibb pibi pica picc pici pics pict picu piia piip pipa pipi pipp pips pisa pisi piss pist pisu pita piti pits pitt pitu pius ppac ppap ppcc ppci ppcs ppib ppic pppa pppp ppps ppss ppta ppts pptt psac psap psas psat psbt psca psci pscu psia psip psis pspi pspp psps pssa pssc psst psts pstu ptab ptas ptca ptcc ptsa pttc ptui puas pubs pubu puca puis puit puiu pupa pupi pups pupu pusa pusi puss pust put- puta puti puts putt putu puuc s-ib s-ic s-ii sa-c saab saac saap saas saat saba sabb sabc sabi sabs sabu saca sacc saci sacs sact sacu saia saic saip sais sait sapa sapi sapp saps sasa sasc sasi