a-ii aaaa aaab aaac aaai aaal aaar aaba aabb aabc aabi aabl aaca aacb aacc aaci aacl aaco aacr aacu aaib aaic aaii aala aalc aali aall aalo aalu aaoo aara aarc aari aaro aaru abaa abab abac abai abal abar abau abb- abba abbb abbi abbo abbr abca abcb abcc abci abcl abcr abia abib abic abil abir abiu abla ablo aboa abob abol aboo abor abou abra abrc abri abro abua abul acaa acab acac acai acar acba acbl acca accc acci acco accu aci- acia acic acir acla aclc acli aclr aclu acoa acol acor acou acr- acra acrc acri acro acrr acu- acul acuo acur aiai aiba aibl aibo aica aicc aicr aiia aiib aiic aiir aila aili ailu aioc aioi aira airi airo aiui alaa alac alai alal alao alar alau alb- alba albc albi albo albu alca alcc alco ali- alia alib alii alil alio alir aliu all- alla alli alll allo allr allu aloa aloc aloi alol aloo alor alou alro alua alui alur aoba aoca aola aora aorb aoul arab arac arai aral arar arau arba arbi arc- arca arci arco aria arib arii aril ario arla arli arlo aroa arob aroi aroo aror arr- arra arrc arri arro arrr arru arua arub arui arul auaa auca auci aul- aula auli aull aulo aulu auol aur- aura auri auro ba-i baaa baal baar baba babb babi babo babr babu bac- baca bacc baci baco baia baib baic bail baio bair bala balc bali ball balo balu baol bar- bara barb barc bari baro barr baru bau- baul baur bbau bbbb bbci bblb bbrc bcaa bcar bcbc bcca bccc bcci bccl bcia bcor bcra bcru bcuc bial biao biar biba bibb bibi bibl bibo bica bicc bici bico bila bili bill bilo bilu bio- bioc bioi biol biou bira birb biri birl biro birr biru blaa blab blac blau blcu blic blio blir blob bloc bloo blou blrc blub blur boab boac boai boal boar boba bobb bobi bobo bobu boca boco bocu boi- boii boil boiu bola boli boll bolo bolu boob booc bool boor bor- bora bori boro borr boru boua boul bour brab brac brai brao brau brca brcb bria bric bril brio broa brob broc brol broo bror brou brrr bruc bual buar buba bubb bubi bubo bubu buca bucc buci buco bucu buic buir buiu bula bulb buli bull bulu buol bur- bura burb buri burl buro burr buru c-bo caaa caab caac caal caba cabi cabo cabu cac- caca cacc caci caco cacr caia caib caic cail caio cair caiu cala calc cali call calo calu caoi caol caor cara carb carc cari carl caro carr cauc caul cauo cbac cbal cbar cbbc cbca cbcc cbcl cbcr cbcu cbia cbir cblb cblc cbol cbrl ccaa ccab ccac ccai ccar ccba ccbc ccca cccb cccc ccci cccl cccu ccic ccii ccil ccir ccla cclc ccli ccob ccoc ccra ccrc ccri ccrl ccuc ciaa cial ciao ciar ciau ciba cibc cibi cibo cica cicc cici cico cicr cicu ciia ciii cila cili cill cilo ciob cior cira cirb circ ciri cirl ciro cirr ciuc clab clai clar clau clib clic clii clio clir clob cloo clor clou clra clri clro club coai coal coba cobb cobi cobo cobu coca coco cocu coia coil coir col- cola colb coli coll colo colu coob cool cor- cora corb corc cori corl coro corr coua coub coul cour crab crac crai crar crau crbc crbu crca crcc crcr cria crib cric criu crob croc crol croo cror crub cuau cub- cuba cubb cubi cuca cucc cuci cui- cuil cuir cula culb culc cull culo cura curb curi curl curo curr iaaa iaac iaai iaal iaba iaca iacc iacr iacu iaia iala iall ialu iara iarc iaru ibac ibar ibca ibia ibra ibrc ibri ibro icaa icab icac icai ical icao icar icbc icca iccb iccc icci iccl icco iccr iccu icll iclr icoc icor icra icrc icrr icru icub iiac iica iiii iiio iila iioi iioo iira iirc iiuc ilac ilal ilar ilbc ilca ilia ilic ilio ilir ill- illa illi illo iloc iloo ioba iobi ioci ioii ioio iola iolo iooi iooo iora iori irac irai iral irao irar irca ircc ircu iri- iria iric iril irio irla irlb irob iroc irra irrc irri irul iucc iuiu iura laaa laac laal laar laba labi labo labr labu laca lacc laci lacl laco lacu laia laic lail lair lala lali lall lalo lalu laou lara larb larc lari larr laru laub laul laur lbar lbcc lbia lblr lcac lcbc lcca lccc lcia lcor lcra lcrl liac liao liar liba libc libo libr libu lica lico licr liia liii liir lila lilb lili lill lilo lilu lio- lior lira lirc liri lirl liro lirr liru liua llao llcc lllc llll lloa lloc lloo loac loar lob- loba lobb lobi lobo loca locc loci loco locu loic loir loiu lola loli loll lolo loob looc lool loor lora lori loro loui loul lour louu lrac lral lrba lric lroc lroi lrrc lrrr luai luau luba luca luci lula luli lull lulu lura luri luua oaau oaic oall oara obai obal obba obbo obia obla oblu oboi obol obor obra obri obro ocab ocac ocal ocbc occa occc occi oclc ocra ocrl ocro ocrr ocul ocur oiba oici oiii oila oira olac olar olba olbo olca olcc olia olib olic olio olla olli ollo olor olur ooaa ooba oobi oocr ooia oola oolo oooo oora orab orac orai oral orao orar orba orbb orbi orbo orbu orca orci orco ori- oria oric oril orio orla orlo orlu oro- oror orra orri orro orub ouac oucc ouii ouir oula oulu our- oura ouro ouu- raab raba rabb rabi rabl rabo rabu rac- raca racc raci raco racu raia raic raii rail rair raiu rala ralb rall ralo raob raoc raol rara rarb rari raro raua raub rauc raul rbbb rbbr rbcl rcac rcbc rcbo rccb rccc