a-ii aaaa aaab aaac aaaf aaai aaas aaba aabb aabc aabi aabt aaca aacb aacc aacf aaci aaco aacs aact aafa aafb aafc aaff aafi aaib aaic aaii aais aaoo aasa aasc aasf aasi aass aast aata aatc aatf aatt abaa abab abac abaf abai abas abat abb- abba abbb abbi abbo abbs abbt abca abcb abcc abcf abci abcs abct abff abia abib abic abis abit aboa abob abof aboo abos abot abs- absa absf absi abss abta abts ac-t acaa acab acac acai acas acat acba acca accc accf acci acco accs acct acfc acfi acfs acft aci- acia acic acif acis acoa acos acot acsa acsc acsi acss acst acta actc actf acti acto acts actt afaa afao afat afbs afca afcb afcc afci afcs affa affc affi affo affs afft afia afib afif afis afit afoa afoo afsa afsb afsc afst afta aftc afts aiai aias aiba aibo aica aicc aicf aics aiff aifs aiia aiib aiic aioc aioi aisa aisb aisi aiso aist aita aitf aiti aits aitt aoba aoca aocs aoss aotc aotf asaa asab asac asaf asai asao asas asat asba asbo asc- asca ascb ascc asci asco asct asfa asfi asia asic asif asii asio asis asit asob asoc asof asoi asos asot assa assc assi asso asss asst asta astb astc asti asto asts at-t ataa atab atac atai atas atat atbs atca atcc atcf atco atcs atfb atfc atfs atia atic atif atis atit atob atoc atof atoi atos atot atsb atsc atsi atst atta atti atto atts ba-i baaa baaf baas baat baba babb babi babo babs bac- baca bacc baci baco bacs bact bafc baff bafo baft baia baib baic baio bais bait baos basa basc basf basi baso bass bast bata batc batf bati bato bats batt bbas bbbb bbbs bbci bbfc bcaa bcas bcat bcbc bcbs bcca bccc bcci bccs bcfc bcia bcis bcit bcof bcos bcsa bcsc bcss bctc bcts bfas bfca bfcs bffs bfsi bfta bfts bftt biaf biao bias biat biba bibb bibi bibo bibs bica bicc bici bico bics bifa biff bifi biis bio- bioc bioi bios biot bis- bisa bisc biso biss bist bita bitc bito bits bitt boab boac boai boas boat boba bobb bobi bobo bobs boca boco bocs bofa boff bofs boi- boii bois boit boob booc boof boos boot bosa bosc bosi boso boss bost bota botb boti boto bots bott bsaa bsac bsas bsat bsci bscs bsfa bsfc bsff bsfs bsic bsos bssc bsts btaa btaf btcc btcs btfc btob btss bttb c-bo caaa caab caac caaf caas caat caba cabf cabi cabo cabs cac- caca cacc caci caco cafa cafb cafc caff cafs caia caib caic caio cais cait caoi caos casa casb casc casi caso cass cast cat- cata catb catc catf cati cato cats catt cbac cbat cbbc cbbs cbca cbcc cbcs cbct cbfb cbfc cbia cbit cbot cbsa cbsc cbsi cbta cbtc cbtf ccaa ccab ccac ccaf ccai ccas ccat ccba ccbc ccca cccb cccc cccf ccci cccs ccfa ccfc ccff ccfi ccic ccii ccis ccob ccoc ccsa ccsf ccsi ccss ccst cctb cctc cctt cfaa cfab cfac cfao cfbc cfbs cfbt cfca cfcb cfcf cfco cfcs cffb cfia cfit cfoa cfos cfsa cfsi cfta cftc ciaa ciao cias ciat ciba cibc cibi cibo cica cicc cici cico cics cict cifa ciff cifs ciia ciii ciis ciit ciob cios cis- cisa cisc ciss cist cita citb citf citi cito cits citt coai coas coat coba cobb cobi cobo cobs coca coco coct cofc coff cofi cofs coft coia coif cois coit coob coof coos coot cosa cosc cosi coso coss cost cota cotb cotc coti coto cots cott csaa csab csac csao csas csat csbf cscb cscc cscf csci csco cscs csfc csia csib csio csis csit csob csos csot cssa csta cstc csto csts ctab ctba ctbi ctbs ctca ctcf ctfc ctfo ctfs ctia ctic ctos ctot ctsa ctsc ctss ctta ctts faaa faac faas faba fabi fabo fabs faca facc facs fact fafa fafc faff fafi fafo faio fais fait fasa fasc fasi faso fass fast fata fatc fatf fati fato fats fatt fbis fcab fcas fcat fcba fcbs fcca fccf fcic fcii fcot fcsc fcst fcto ffcc ffff ffii ffsa ffss fftf fiaa fiac fiaf fias fiat fiba fibs fica ficc fico fics fict fifa fifc fiff fifi fifo fift fiii fios fisa fisc fisi fiss fist fita fitc fiti fits fitt foaf foba fobs fobt foca foci foco focs fofo foia fois foof foos foot fosa fosb fosi foso foss fost fota foti foto fots fott fsai fsas fscb fscc fsfi fsfo fsia fssa fssc fssf fsta ft-c ftfc ftii ftos ftsa iaaa iaac iaai iaas iaat iaba iaca iacc iacs iact iafc iaff iaia iais iasa iasc iasi iaso iata iatc iati ibac ibas ibat ibca ibcs ibfi ibia ibis ibos ibot ibsa ibsf ibss ibtb ibtc ibts icaa icab icac icaf icai icao icas icat icbc icbs icca iccb iccc iccf icci icco iccs icct icfb icis icoc icos icsa icsb icsc icsi icss icst icta icts ifaa ifac ifao ifas ifat ifbb ifco ific ifis ifit ifsa ifsb ifsc ifso ifta ifto iiac iias iica iifa iiii iiio iiis iiit iioi iioo iios iisc iisi iist iita iitt ioba iobi ioci iofc ioii ioio ioit ioof iooi iooo ioos ioso iota iotf ioto is-a isac isaf isai isao isas isat isba isbt isca iscc isci isco iscs isct isfa isfc isia isic isis isit iso- isoc isof isos issa issc issf issi isso isss ista istc isti isto ists itaa itac itaf itai itas itat itbs itcs itfa itia itic itif itis itof itoi itoo itos itsa itsf itsi itso itta ittf itto oafc oafo oafs oaic oais oasc oasi oass oast oats obai obas obba obbo obia obis obit oboi obos obot obss obst obts ocab ocac ocas ocat ocbc occa occc occi occt ocfa ocis ocos ocsa oct- octa octi octo octs ofas