a-ii aaaa aaab aaac aaai aaal aaar aaas aaba aabb aabc aabi aabl aaca aacb aacc aaci aacl aacr aacs aacu aaib aaic aaii aais aala aalc aali aall aals aalu aara aarc aari aars aaru aasa aasc aasi aass aasu aaus abaa abab abac abai abal abar abas abau abb- abba abbb abbi abbr abbs abca abcb abcc abci abcl abcr abcs abia abib abic abil abir abis abiu abla abls abra abrc abri abrs abs- absa absi absl abss absu abua abul abus acaa acab acac acai acar acas acba acbl acca accc acci accs accu aci- acia acic acir acis acla aclc acli aclr acls aclu acr- acra acrc acri acrr acrs acsa acsc acsi acsl acss acu- acul acur acus aiai aias aiba aibl aica aicc aicr aics aiia aiib aiic aiir aila aili ails ailu aira airi airs aisa aisb aisi aisl aisr aiui alaa alac alai alal alar alas alau alb- alba albc albi albs albu alca alcc alcs ali- alia alib alii alil alir alis aliu all- alla alli alll allr alls allu alsa alsc alua alui alur alus arab arac arai aral arar aras arau arba arbi arbs arc- arca arci arcs aria arib arii aril aris arla arli arr- arra arrc arri arrr arrs arru ars- arsa arsc arsi arsu arua arub arui arul asaa asab asac asai asal asar asas asau asba asbu asc- asca ascb ascc asci ascl ascr asia asic asii asil asir asis asla asli aslr asra asrc asrs asru assa assc assi assl assr asss assu asub asui asur asus auaa auca auci auis aul- aula auli aull auls aulu aur- aura auri ausa ausu ba-i baaa baal baar baas baba babb babi babr babs babu bac- baca bacc baci bacs baia baib baic bail bair bais bala balc bali ball bals balu bar- bara barb barc bari barr bars baru basa basc basi bass basu bau- baul baur bbas bbau bbbb bbbs bbci bblb bbls bbrc bcaa bcar bcas bcbc bcbs bcca bccc bcci bccl bccs bcia bcis bcra bcrs bcru bcsa bcsc bcsl bcss bcuc bial biar bias biba bibb bibi bibl bibs bica bicc bici bics biis bila bili bill bils bilu bira birb biri birl birr birs biru bis- bisa bisc bisl biss bisu blaa blab blac blas blau blcu blic blir blis blls blrc blss blub blur blus brab brac brai bras brau brca brcb bria bric bril bris brls brrr brrs brsb brsr bruc brus bsaa bsac bsas bsci bscs bsic bslc bsra bssc bual buar buba bubb bubi bubs bubu buca bucc buci bucs bucu buic buir buis buiu bula bulb buli bull buls bulu bur- bura burb buri burl burr burs buru busa busc busi buss busu buus caaa caab caac caal caas caba cabi cabs cabu cac- caca cacc caci cacr caia caib caic cail cair cais caiu cala calc cali call cals calu cara carb carc cari carl carr cars casa casb casc casi casl casr cass casu cauc caul caus cbac cbal cbar cbbc cbbs cbca cbcc cbcl cbcr cbcs cbcu cbia cbir cblb cblc cbrl cbsa cbsc cbsi cbus ccaa ccab ccac ccai ccar ccas ccba ccbc ccca cccb cccc ccci cccl cccs cccu ccic ccii ccil ccir ccis ccla cclc ccli ccls ccra ccrc ccri ccrl ccrs ccsa ccsi ccsl ccss ccuc ccus ciaa cial ciar cias ciau ciba cibc cibi cica cicc cici cicr cics cicu ciia ciii ciis cila cili cill cils cira cirb circ ciri cirl cirr cirs cis- cisa cisc cisl cisr ciss ciuc cius clab clai clar clas clau clib clic clii clir clis clra clri clrs clsa clsc club crab crac crai crar cras crau crbc crbu crca crcc crcr cria crib cric cris criu crls crsa crss crub crus csaa csab csac csar csas cscb cscc csci cscl cscr cscs csia csib csir csis csla cslr cslu csra csrc csrs cssa cssr csua csur csus cuau cub- cuba cubb cubi cubs cuca cucc cuci cui- cuil cuir cuis cula culb culc cull culs cura curb curi curl curr curs cusa cusb cuss cusu iaaa iaac iaai iaal iaas iaba iaca iacc iacr iacs iacu iaia iais iala iall ials ialu iara iarc iars iaru iasa iasc iasi iasr ibac ibar ibas ibca ibcs ibia ibis ibra ibrc ibri ibsa ibss ibus icaa icab icac icai ical icar icas icbc icbs icca iccb iccc icci iccl iccr iccs iccu icis icll iclr icra icrc icrr icrs icru icsa icsb icsc icsi icsr icss icub icus iiac iias iica iiii iiis iila iira iirc iirs iisc iisi iisr iisu iiuc ilac ilal ilar ilas ilbc ilca ilia ilic ilir ilis ill- illa illi ills ilsa ilus irac irai iral irar iras irca ircc ircs ircu iri- iria iric iril iris irla irlb irra irrc irri irrs irsa irul irus is-a isac isai isal isar isas isba isbl isca iscc isci iscr iscs iscu isia isic isil isis isla isls isra isri issa issc issi issr isss issu isua isus iucc iuiu iura iuss laaa laac laal laar laas laba labi labr labs labu laca lacc laci lacl lacs lacu laia laic lail lair lais lala lali lall lalu lara larb larc lari larr lars laru lasa lasi lass lasu laub laul laur laus lbar lbcc lbia lblr lbrs lbsc lcac lcbc lcca lccc lccs lcia lcis lcls lcra lcrl lcrs lcsc lcsr liac liar lias liba libc libr libs libu lica licr lics liia liii liir liis lila lilb lili lill lils lilu lira lirc liri lirl lirr lirs liru lisa lisi liss lisu liua lius llbs llcc llcs lllc llll lrac lral lrba lrcs lric lrrc lrrr ls-r lsbu lscb lscs lsla lsrc lssa lssr luai luas luau luba lubs luca luci lucs luis lula luli lull lulu lura luri lurs lusa lusi luss luua raab raas raba rabb rabi rabl rabs rabu rac- raca racc raci racs racu raia raic raii rail rair rais raiu rala