-ana a-ii aaaa aaab aaac aaaf aaai aaan aaba aabb aabc aabi aaca aacb aacc aacf aaci aacn aaco aafa aafb aafc aaff aafi aaib aaic aaii aain aana aani aaon aaoo abaa abab abac abaf abai aban abb- abba abbb abbi abbo abca abcb abcc abcf abci abcn abff abia abib abic abin aboa abob abof abon aboo acaa acab acac acai acan acba acca accc accf acci acco acfc acfi aci- acia acic acif acin acoa acon afaa afan afao afca afcb afcc afci affa affc affi affo afia afib afif afin afoa afoo aiai aian aiba aibn aibo aica aicc aicf aiff aiia aiib aiic aiin aina ainc aini aino aioc aioi aion ana- anaa anab anac anai anan anao anba anbb anbi anbo anca ancc anco anfa anfo ania anib anic anif anin anio anna annb anni anno ano- anoa anon aoba aoca aonb aono ba-i baaa baaf baan baba babb babi babo bac- baca bacc baci bacn baco bafc baff bafo baia baib baic bain baio bana banc bani bann bano baon bbbb bbci bbfc bbfn bbin bcaa bcbc bcca bccc bcci bcfc bcia bcof bfca biaf bian biao biba bibb bibi bibo bica bicc bici bico bifa biff bifi biin bin- bina binc bini binn bino bio- bioc bioi bion bnai bnib bnin bnoc boab boac boai boan boba bobb bobi bobo boca boco bofa boff boi- boii boin bona bonc boni bonn bono boob booc boof boon c-bo caaa caab caac caaf caan caba cabf cabi cabo cac- caca cacc caci caco cafa cafb cafc caff caia caib caic cain caio cana canc cani cann cano caoi cbac cbbc cbca cbcc cbcn cbfb cbfc cbia cbna ccaa ccab ccac ccaf ccai ccba ccbc ccbn ccca cccb cccc cccf ccci ccfa ccfc ccff ccfi ccic ccii ccna ccnb ccnc ccnf ccni ccob ccoc cfaa cfab cfac cfao cfbc cfbn cfca cfcb cfcf cfcn cfco cffb cfia cfnb cfni cfoa ciaa cian ciao ciba cibc cibi cibo cica cicc cici cico cifa ciff ciia ciii cin- cina cinc cinf cini cino ciob cion cnaa cnac cnbc cnci cnco cnfa cnib cnic cnna coai coan coba cobb cobi cobo coca coco cofc coff cofi coia coif coin con- cona conc conf coni conn cono coob coof coon faaa faac faan faba fabi fabo faca facc fafa fafc faff fafi fafo fain faio fana fanc fani fano faon fcab fcba fcca fccf fcic fcii ffcc ffff ffii fiaa fiac fiaf fian fiba fica ficc fico fifa fifc fiff fifi fifo fiii fina fini finn fino fion fnac fnci foaf foan foba foca foci foco fofo foia foin fono foof foon i-no iaaa iaac iaai iaba iaca iacc iafc iaff iaia iain iana ibac iban ibca ibfi ibia ibon icaa icab icac icaf icai ican icao icbc icca iccb iccc iccf icci iccn icco icfb icnb icnc icoc icon ifaa ifac ifan ifao ifbb ifco ific ifni ifno iiac iica iifa iiii iiio iino iioi iioo inab inac inaf inai inan inao inba inbo inca incb inci inco infa infi info inia inna inni inno ino- inoi inon ioan ioba iobi ioci iofc ioii ioio iona ioni ionn iono ioof iooi iooo n-ii naaa naab naac naai naan naba nabc nabf nabi nabo naca nacc nacf naci naco nafa nafc naff nafi nafo naia naib naic naif nain naio nan- nana nanb nani nann nano naoc naoi nbaa nbaf nbbc nbbo nbca nbcc nbci nbco nbfa nbfc nbia nbic ncaa ncac ncba ncbc ncbi ncca nccc nccf ncci nccn ncfc ncia ncna ncnc ncoa ncoc nfaa nfff nfia nfib nfic nfon niab niac niaf nian nibi nibo nica nicc nicf nici nico nifa nifc niff niia nina nini nino nion nioo nnnn noaa noac noba nobc nobi nobo noci noco nofi noia noib noif noin noio non- nona noni nonn nono noo- noob noon nooo oafc oafo oaic obai oban obba obbo obia obin oboi obon ocab ocac ocan ocbc occa occc occi occn ocfa ocin ocna ocon ofan off- offa offc offo ofna ofno oiba oici oiii oion onab onan onc- onca oncf onco onia onic onna onni onno onon ooaa ooba oobi ooff ooia oona oooo