a-ii aaaa aaab aaac aaad aaai aaal aaar aaba aabb aabc aabd aabi aabl aaca aacb aacc aacd aaci aacl aacr aacu aada aadc aadi aadu aaib aaic aaii aala aalc aald aali aall aalu aara aarc aard aari aaru abaa abab abac abad abai abal abar abau abb- abba abbb abbi abbr abca abcb abcc abcd abci abcl abcr abda abdi abdu abia abib abic abid abil abir abiu abla abra abrc abri abua abud abul acaa acab acac acad acai acar acba acbl acca accc accd acci accu acda acdb acdc acdi aci- acia acic acid acir acla aclc acli aclr aclu acr- acra acrc acri acrr acu- acul acur adaa adab adac adad adai adal adar adba adbc adbi adcc adci adda addc addd addi addl addr addu adia adib adic adir adli adra adua adub adur aiai aiba aibl aica aicc aicd aicr aida aidb aidc aidi aidr aidu aiia aiib aiic aiid aiir aila aild aili ailu aira aird airi aiud aiui alaa alac alad alai alal alar alau alb- alba albc albi albu alca alcc ald- alda aldi aldl ali- alia alib alid alii alil alir aliu all- alla alli alll allr allu alua alui alur arab arac arad arai aral arar arau arba arbi arc- arca arci arda ardc ardi ardl ardu aria arib arid arii aril arla arli arr- arra arrc arri arrr arru arua arub arud arui arul auaa auca auci audc audi aul- aula auld auli aull aulu aur- aura aurd auri ba-i baaa baad baal baar baba babb babi babr babu bac- baca bacc baci bada badb badd badi badr badu baia baib baic baid bail bair bala balc bald bali ball balu bar- bara barb barc bard bari barr baru bau- baud baul baur bbad bbau bbbb bbci bbdd bblb bbrc bcaa bcar bcbc bcca bccc bcci bccl bcda bcia bcra bcru bcuc bd-r bdbc bddc bdii biad bial biar biba bibb bibi bibl bica bicc bici bida bidi bidr bidu bila bild bili bill bilu bira birb bird biri birl birr biru blaa blab blac blad blau blcu bldc bldr blic blir blrc blub blud blur brab brac brad brai brau brca brcb brda bria bric brid bril brrr bruc brud buad bual buar buba bubb bubi bubu buca bucc buci bucu buda budb budd budi budl budu buic buid buir buiu bula bulb buld buli bull bulu bur- bura burb burd buri burl burr buru c-cd caaa caab caac caal caba cabi cabu cac- caca cacc caci cacr cada cadc cadd cadi cadr cadu caia caib caic caid cail cair caiu cala calc cald cali call calu cara carb carc card cari carl carr cauc caul cbac cbal cbar cbbc cbca cbcc cbcl cbcr cbcu cbdb cbdc cbdi cbia cbid cbir cblb cblc cbrd cbrl ccaa ccab ccac ccad ccai ccar ccba ccbc ccca cccb cccc ccci cccl cccu ccdc ccdi ccdr ccic ccid ccii ccil ccir ccla cclc ccli ccra ccrc ccri ccrl ccuc cd-r cdaa cdac cdad cdai cdba cdda cddb cddl cddr cdic cdii cdli ciaa cial ciar ciau ciba cibc cibi cica cicc cici cicr cicu cida cidc cidi cidr ciia ciid ciii cila cili cill cira cirb circ ciri cirl cirr ciuc clab clad clai clar clau clcd cldc cldr clib clic clii clir clra clrd clri club clud crab crac crai crar crau crbc crbu crca crcc crcr crda crdc cria crib cric criu crub crud cuau cub- cuba cubb cubi cuca cucc cuci cuda cudi cui- cuil cuir cula culb culc culd cull cura curb curd curi curl curr daab daad daal daar daau daba dabb dabu daca daci dada dadi dadu daia daid dail dair dala dali dall dalu dara darb darc dard dari darl darr daru daub daud daur dbar dbcc dcbc dcca dccb dccc dcci dccl dccu dcdb dcia dcii dcil dcli dcra dddd ddlc ddrc ddub dia- diab diac diad dial diar diba dibb dica dici dida didi didu diii dila dili dill dira dird dirl dirr dlab dlbd dlia dlib dlii dlil draa drab drac drad drar drau drba drbc drca drda drib dric dril drra drua drub drui druu duaa duab duad dual duar dub- duba dubb dubc dubu duca duda dudd dudu duid duil duir dula dulc duli dull dulu dura duri duru duul duur iaaa iaac iaai iaal iaba iaca iacc iacr iacu iadb iadc iaia iala iall ialu iara iarc iaru ibac ibad ibar ibca ibia ibid ibra ibrc ibrd ibri icaa icab icac icad icai ical icar icbc icbd icca iccb iccc icci iccl iccr iccu icdc icdd icdl icll iclr icra icrc icrr icru icub idad idar idca idcr idda idia idic idid idil idir idli idra idrc idub iiac iica iicd iida iiii iila iira iirc iiuc ilac ilal ilar ilbc ilca ilcd ilia ilic ilir ill- illa illd illi ilud irac irad irai iral irar irca ircc ircd ircu irda irdc iri- iria iric irid iril irla irlb irra irrc irri irul iucc iuiu iura laaa laac laad laal laar laba labi labr labu laca lacc laci lacl lacu lada ladd ladi ladu laia laic laid lail lair lala lald lali lall lalu lara larb larc lard lari larr laru laub laud laul laur lbar lbcc lbia lblr lcac lcad lcbc lcca lccc lcdd lcdr lcia lcra lcrd lcrl ldci liac liar liba libc libr libu lica licr lida lidb lidl liia liii liir lila lilb lili lill lilu lira lirc lird liri lirl lirr liru liua llcc lldb lldc lllc llll llud lrac lral lrba lrdd lric lrrc lrrr luai luau luba luca luci luda ludd ludi lula luli lull lulu lura lurd luri luua raab raad raba rabb rabi rabl rabu rac- raca racc raci racu rada radc radd radl radr radu raia raic raid raii rail rair raiu rala ralb rall rara rarb rari raua raub rauc raud raul rbbb rbbr rbcl rcac rcbc rccb rccc rcdc rcic rcid rcrd rdac riaa riab