a-ii aaaa aaab aaac aaaf aaai aaar aaba aabb aabc aabi aaca aacb aacc aacf aaci aaco aacr aafa aafb aafc aaff aafi aaib aaic aaii aaoo aara aarc aari aaro abaa abab abac abaf abag abai abar abb- abba abbb abbi abbo abbr abca abcb abcc abcf abci abcr abff abia abib abic abig abir aboa abob abof aboo abor abra abrc abri abro acaa acab acac acag acai acar acba acca accc accf acci acco acfc acfi acga acgi acgr aci- acia acic acif acir acoa acog acor acr- acra acrc acri acro acrr afaa afao afar afca afcb afcc afci affa affc affi affo afgf afia afib afif afig afir afoa afog afoo afor afr- afra afrc afri afro ag-o agac agag agai agao agar agba agbo agca agcc agco agfa agga aggi agia agib agic agig agii agio agir agob agog agoo agra agri agro aiai aiba aibo aica aicc aicf aicr aiff aiga aigo aiia aiib aiic aiir aioc aioi aira airi airo aoba aoca aora aorb arab arac araf arag arai arar arba arbi arc- arca arci arco arfa arfb arfc arff arga argb argi argo aria arib arif arig arii ario aroa arob aroi aroo aror arr- arra arrc arrg arri arro arrr ba-i baaa baaf baar baba babb babi babo babr bac- baca bacc baci baco bafc baff bafo baga bagg bagi bago baia baib baic baig baio bair bar- bara barb barc barf barg bari baro barr bbbb bbci bbfc bbga bbrc bbrg bcaa bcar bcbc bcbg bcca bccc bcci bcfc bcia bcof bcor bcra bfca bfgf bgca bgfc bgia biaf biao biar biba bibb bibi bibo bica bicc bicg bici bico bifa biff bifi biga bigb bigc bigg bigo bio- bioc biog bioi bira birb birg biri biro birr boab boac boag boai boar boba bobb bobi bobo boca boco bofa boff boga bogg bogi bogo boi- boii boob booc boof boog boor bor- bora borf borg bori boro borr brab brac braf brag brai brao brca brcb brfc bria bric brig brio broa brob broc brog broo bror brrr c-bo caaa caab caac caaf caba cabf cabg cabi cabo cac- caca cacc caci caco cacr cafa cafb cafc caff caga cagg cagi cago cagr caia caib caic caio cair caoi caor cara carb carc carf cari caro carr cbac cbar cbbc cbca cbcc cbcr cbfb cbfc cbga cbgb cbia cbir ccaa ccab ccac ccaf ccag ccai ccar ccba ccbc ccca cccb cccc cccf ccci ccfa ccfc ccff ccfi ccga ccgc ccic ccii ccir ccob ccoc ccra ccrc ccrf ccrg ccri cfaa cfab cfac cfao cfar cfbc cfbr cfca cfcb cfcf cfco cffb cffr cfgo cfia cfoa cfor cfra cfrb cfrg cgac cgcc cgcg cgfc cgro ciaa ciao ciar ciba cibc cibi cibo cica cicc cici cico cicr cifa ciff cifg ciga cigi ciia ciii ciob cior cira cirb circ ciri ciro cirr coag coai coba cobb cobi cobo coca coco cofc coff cofi cogi cogo coia coif coir coob coof cor- cora corb corc corf corg cori coro corr crab crac craf crag crai crar crbc crca crcc crcr crfc cria crib cric crif crig crob croc croo cror faaa faac faba fabi fabo faca facc fafa fafc faff fafg fafi fafo fagg fagi fago faio fair fara farb farc farg faro farr fbar fcab fcar fcba fcca fccf fcic fcii fcra ffar ffcc ffff ffii ffrr fiaa fiac fiaf fiar fiba fica ficc fico fifa fifc fiff fifi fifo figa figc figg figo fiii fior fira foaf foar foba foca foci foco fofo fogg fogi fogo foia foof for- fora forb forg fori foro forr frab frac frag frbc frcc frfc fria frib fric frig frio frob frog gaar gaba gabb gabi gabo gabr gafa gafb gafc gaff gafi gaga gagg gagi gago gaia gaig gair gara garb garf garg gari garo garr gbag gbbo gbfc gc-c gcaa gcbc gccc gccf gcfc gcic gcii gcoa gcrg gfcf gfci gffa gfoa gfor ggfg gggg giaa giac giai giba gibb gica gicr giff giga gigg gigi gigo giog gioi gira girg giri giro girr goaf goai goar goba gobi gobo goca gocr goff gofr goga gogi gogo goif goof goog gooi goor gora gorb gorf gorg gori goro gorr grab grac graf grai grbr grcc grfa gria grib gric grif grig grob groc grof grog groi groo gror grrr i-go iaaa iaac iaai iaba iaca iacc iacr iafc iaff iago iaia iara iarc ibac ibar ibca ibfi ibga ibia ibra ibrc ibri ibro icaa icab icac icaf icag icai icao icar icbc icca iccb iccc iccf icci icco iccr icfb icga icgc icoc icor icra icrc icrf icrr ifaa ifac ifao ifar ifbb ifco ific ifor ifra ifrb ifrf ifri igac igar igba igbc igbo igcc igfa igfc igga igia igoo igor igra igri iiac iica iifa iiii iiio iioi iioo iira iirc ioba iobi iocg ioci iofc ioii ioio ioof iooi iooo iora iorg iori irac iraf irai irao irar irca ircc ircg iri- iria iric irig irio irob iroc irra irrc irri oafc oafo oaic oara obai obba obbo obia oboi obor obra obri obro ocab ocac ocbc occa occc occi ocfa ocga ocra ocro ocrr ofcr off- offa offc offo offr ofgo ofor ofra ogai ogar ogb ogba ogfr oggi ogoa ogog ogoi ogra ogri ogro oiba oici oigo oiii oira ooaa ooba oobi oocr ooff ooia oooo oora orab orac orai orao orar orba orbb orbi orbo orca orci orco orff orfi orga orgo ori- oria oric orif orig orio oro- orof oror orra orri orro raab raaf raag raba rabb rabi rabo rac- raca racc raci raco rafa rafc raff rafi raga ragg ragi rago raia raic raif raig raii rair raob raoc rara rarb rarf rari raro rbaf rbbb rbbr rcac rcaf rcbc rcbo rccb rccc rcfc rcga rcgc rcic rcrg rffc rfic rgba rgbi riaa riab riai rib- riba ribo rica ricc rico rifa riff riga rigg rigi rigo riia riif riri roab