a-ii aaaa aaab aaac aaai aaar aaas aaba aabb aabc aabi aabt aaca aacb aacc aaci aaco aacr aacs aact aaib aaic aaii aais aaoo aara aarc aari aaro aars aart aasa aasc aasi aass aast aata aatc aatt abaa abab abac abai abar abas abat abb- abba abbb abbi abbo abbr abbs abbt abca abcb abcc abci abcr abcs abct abia abib abic abir abis abit aboa abob aboo abor abos abot abra abrc abri abro abrs abs- absa absi abss abta abts ac-t acaa acab acac acai acar acas acat acba acca accc acci acco accs acct aci- acia acic acir acis acoa acor acos acot acr- acra acrc acri acro acrr acrs acsa acsc acsi acss acst acta actc acti acto acts actt aiai aias aiba aibo aica aicc aicr aics aiia aiib aiic aiir aioc aioi aira airi airo airs airt aisa aisb aisi aiso aisr aist aita aiti aitr aits aitt aoba aoca aocs aora aorb aors aort aoss aotc arab arac arai arar aras arat arba arbi arbs arc- arca arci arco arcs arct aria arib arii ario aris arit aroa arob aroi aroo aror aros arr- arra arrc arri arro arrr arrs arrt ars- arsa arsc arsi arso arst arta artc arti arto artr arts asaa asab asac asai asao asar asas asat asba asbo asc- asca ascb ascc asci asco ascr asct asia asic asii asio asir asis asit asob asoc asoi asor asos asot asra asrc asro asrs assa assc assi asso assr asss asst asta astb astc asti asto astr asts at-t ataa atab atac atai atar atas atat atbs atca atcc atco atcr atcs atia atic atis atit atob atoc atoi ator atos atot atra atrc atri atro atsb atsc atsi atst atta atti atto attr atts ba-i baaa baar baas baat baba babb babi babo babr babs bac- baca bacc baci baco bacs bact baia baib baic baio bair bais bait baos bar- bara barb barc bari baro barr bars bart basa basc basi baso bass bast bata batc bati bato bats batt bbas bbbb bbbs bbci bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bcci bccs bcia bcis bcit bcor bcos bcra bcrs bcsa bcsc bcss bctc bcts biao biar bias biat biba bibb bibi bibo bibs bica bicc bici bico bics biis bio- bioc bioi bios biot bira birb biri biro birr birs birt bis- bisa bisc biso biss bist bita bitc bito bits bitt boab boac boai boar boas boat boba bobb bobi bobo bobs boca boco bocs boi- boii bois boit boob booc boor boos boot bor- bora bori boro borr bors bort bosa bosc bosi boso boss bost bota botb boti boto bots bott brab brac brai brao bras brat brca brcb bria bric brio bris brit broa brob broc broo bror bros brot brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bsci bscs bsic bsos bsra bssc bsts btaa btcc btcs btob btor btrc btrt btss bttb c-bo caaa caab caac caas caat caba cabi cabo cabs cac- caca cacc caci caco cacr caia caib caic caio cair cais cait caoi caor caos cara carb carc cari caro carr cars cart casa casb casc casi caso casr cass cast cat- cata catb catc cati cato cats catt cbac cbar cbat cbbc cbbs cbca cbcc cbcr cbcs cbct cbia cbir cbit cbot cbrt cbsa cbsc cbsi cbta cbtc ccaa ccab ccac ccai ccar ccas ccat ccba ccbc ccca cccb cccc ccci cccs ccic ccii ccir ccis ccob ccoc ccra ccrc ccri ccrs ccrt ccsa ccsi ccss ccst cctb cctc cctt ciaa ciao ciar cias ciat ciba cibc cibi cibo cica cicc cici cico cicr cics cict ciia ciii ciis ciit ciob cior cios cira cirb circ ciri ciro cirr cirs cirt cis- cisa cisc cisr ciss cist cita citb citi cito cits citt coai coas coat coba cobb cobi cobo cobs coca coco coct coia coir cois coit coob coos coot cor- cora corb corc cori coro corr cors cort cosa cosc cosi coso coss cost cota cotb cotc coti coto cots cott crab crac crai crar cras crat crbc crca crcc crcr cria crib cric cris crit crob croc croo cror crot crrt crsa crss crst crtc crts csaa csab csac csao csar csas csat cscb cscc csci csco cscr cscs csia csib csio csir csis csit csob csor csos csot csra csrc csrs cssa cssr csta cstc csto cstr csts ctab ctba ctbi ctbs ctca ctia ctic ctor ctos ctot ctrc ctrs ctsa ctsc ctss ctta ctts iaaa iaac iaai iaas iaat iaba iaca iacc iacr iacs iact iaia iais iara iarc iars iart iasa iasc iasi iaso iasr iata iatc iati ibac ibar ibas ibat ibca ibcs ibia ibis ibos ibot ibra ibrc ibri ibro ibsa ibss ibtb ibtc ibts icaa icab icac icai icao icar icas icat icbc icbs icca iccb iccc icci icco iccr iccs icct icis icoc icor icos icra icrc icrr icrs icrt icsa icsb icsc icsi icsr icss icst icta icts iiac iias iica iiii iiio iiis iiit iioi iioo iios iira iirc iirs iisc iisi iisr iist iita iitr iitt ioba iobi ioci ioii ioio ioit iooi iooo ioos iora iori iors ioso iota ioto irac irai irao irar iras irca ircc ircs iri- iria iric irio iris irob iroc irra irrc irri irrs irsa irta irti irts is-a isac isai isao isar isas isat isba isbt isca iscc isci isco iscr iscs isct isia isic isis isit iso- isoc isor isos isra isri issa issc issi isso issr isss ista istc isti isto istr ists itaa itac itai itar itas itat itbs itcs itia itic itis itoi itoo itor itos itra itri itrs itsa itsi itso itta itto oaic oais oara oars oasc oasi oass oast oats obai obas obba obbo obia obis obit oboi obor obos obot obra obri obro obsr obss obst obts ocab ocac ocas ocat ocbc occa occc occi occt ocis ocos ocra ocro ocrr ocrs