a-ii aaaa aaab aaac aaaf aaai aaar aaba aabb aabc aabi aabt aaca aacb aacc aacf aaci aaco aacr aact aafa aafb aafc aaff aafi aaib aaic aaii aaoo aara aarc aari aaro aart aata aatc aatf aatt abaa abab abac abaf abai abar abat abb- abba abbb abbi abbo abbr abbt abca abcb abcc abcf abci abcr abct abff abia abib abic abir abit aboa abob abof aboo abor abot abra abrc abri abro abta ac-t acaa acab acac acai acar acat acba acca accc accf acci acco acct acfc acfi acft aci- acia acic acif acir acoa acor acot acr- acra acrc acri acro acrr acta actc actf acti acto actt afaa afao afar afat afca afcb afcc afci affa affc affi affo afft afia afib afif afir afit afoa afoo afor afr- afra afrc afri afro afta aftc aiai aiba aibo aica aicc aicf aicr aiff aiia aiib aiic aiir aioc aioi aira airi airo airt aita aitf aiti aitr aitt aoba aoca aora aorb aort aotc aotf arab arac araf arai arar arat arba arbi arc- arca arci arco arct arfa arfb arfc arff arft aria arib arif arii ario arit aroa arob aroi aroo aror arr- arra arrc arri arro arrr arrt arta artc arti arto artr at-t ataa atab atac atai atar atat atca atcc atcf atco atcr atfb atfc atia atic atif atit atob atoc atof atoi ator atot atra atrc atri atro atta atti atto attr ba-i baaa baaf baar baat baba babb babi babo babr bac- baca bacc baci baco bact bafc baff bafo baft baia baib baic baio bair bait bar- bara barb barc barf bari baro barr bart bata batc batf bati bato batt bbbb bbci bbfc bbrc bcaa bcar bcat bcbc bcca bccc bcci bcfc bcia bcit bcof bcor bcra bctc bfca bfta bftt biaf biao biar biat biba bibb bibi bibo bica bicc bici bico bifa biff bifi bio- bioc bioi biot bira birb biri biro birr birt bita bitc bito bitt boab boac boai boar boat boba bobb bobi bobo boca boco bofa boff boi- boii boit boob booc boof boor boot bor- bora borf bori boro borr bort bota botb boti boto bott brab brac braf brai brao brat brca brcb brfc bria bric brio brit broa brob broc broo bror brot brrr brtc btaa btaf btcc btfc btob btor btrc btrt bttb c-bo caaa caab caac caaf caat caba cabf cabi cabo cac- caca cacc caci caco cacr cafa cafb cafc caff caia caib caic caio cair cait caoi caor cara carb carc carf cari caro carr cart cat- cata catb catc catf cati cato catt cbac cbar cbat cbbc cbca cbcc cbcr cbct cbfb cbfc cbia cbir cbit cbot cbrt cbta cbtc cbtf ccaa ccab ccac ccaf ccai ccar ccat ccba ccbc ccca cccb cccc cccf ccci ccfa ccfc ccff ccfi ccic ccii ccir ccob ccoc ccra ccrc ccrf ccri ccrt cctb cctc cctt cfaa cfab cfac cfao cfar cfbc cfbr cfbt cfca cfcb cfcf cfco cffb cffr cfia cfit cfoa cfor cfra cfrb cfrt cfta cftc cftr ciaa ciao ciar ciat ciba cibc cibi cibo cica cicc cici cico cicr cict cifa ciff ciia ciii ciit ciob cior cira cirb circ ciri ciro cirr cirt cita citb citf citi cito citt coai coat coba cobb cobi cobo coca coco coct cofc coff cofi coft coia coif coir coit coob coof coot cor- cora corb corc corf cori coro corr cort cota cotb cotc coti coto cott crab crac craf crai crar crat crbc crca crcc crcr crfc cria crib cric crif crit crob croc croo cror crot crrt crtc crtf ctab ctba ctbi ctca ctcf ctfc ctfo ctia ctic ctor ctot ctrc ctta faaa faac faba fabi fabo faca facc fact fafa fafc faff fafi fafo faio fair fait fara farb farc faro farr fart fata fatc fatf fati fato fatt fbar fcab fcar fcat fcba fcca fccf fcic fcii fcot fcra fcto ffar ffcc ffff ffii ffrr fftf fiaa fiac fiaf fiar fiat fiba fica ficc fico fict fifa fifc fiff fifi fifo fift fiii fior fira fita fitc fiti fitt foaf foar foba fobt foca foci foco fofo foia foof foot for- fora forb fori foro forr fort fota foti foto fott frab frac frat frbc frcc frfc fria frib fric frio frit frob frot frta ft-c ftfc ftii iaaa iaac iaai iaat iaba iaca iacc iacr iact iafc iaff iaia iara iarc iart iata iatc iati ibac ibar ibat ibca ibfi ibia ibot ibra ibrc ibri ibro ibtb ibtc icaa icab icac icaf icai icao icar icat icbc icca iccb iccc iccf icci icco iccr icct icfb icoc icor icra icrc icrf icrr icrt icta ifaa ifac ifao ifar ifat ifbb ifco ific ifit ifor ifra ifrb ifrf ifri ifta ifto iiac iica iifa iiii iiio iiit iioi iioo iira iirc iita iitr iitt ioba iobi ioci iofc ioii ioio ioit ioof iooi iooo iora iori iota iotf ioto irac iraf irai irao irar irca ircc iri- iria iric irio irob iroc irra irrc irri irta irtf irti itaa itac itaf itai itar itat itfa itia itic itif itof itoi itoo itor itra itrf itri itta ittf itto oafc oafo oaic oara obai obba obbo obia obit oboi obor obot obra obri obro ocab ocac ocat ocbc occa occc occi occt ocfa ocra ocro ocrr oct- octa octi octo ofcr off- offa offc offo offr ofit ofor ofra ofta oiba oici oiii oira oirt oita oitc oiti ooaa ooba oobi oocr ooff ooia oooo oora oort ootb orab orac orai orao orar orat orba orbb orbi orbo orca orci orco orff orfi ori- oria oric orif orio orit oro- orof oror orot orra orri orro orta ortc orto otac otar otfc otic otif otit oto- otof otoo otor otra otro otta otti otto raab raaf raat raba rabb rabi rabo rac- raca racc raci raco ract rafa rafc raff rafi raft raia raic raif raii rair rait raob raoc