-ana a-ii aaaa aaab aaac aaai aaan aaar aaba aabb aabc aabi aabt aaca aacb aacc aaci aacn aacr aact aaib aaic aaii aain aana aani aara aarc aari aart aata aatc aatt abaa abab abac abai aban abar abat abb- abba abbb abbi abbr abbt abca abcb abcc abci abcn abcr abct abia abib abic abin abir abit abra abrc abri abta ac-t acaa acab acac acai acan acar acat acba acca accc acci acct aci- acia acic acin acir acr- acra acrc acri acrr acta actc acti actt aiai aian aiba aibn aica aicc aicr aiia aiib aiic aiin aiir aina ainc aini aint aira airi airt aita aiti aitr aitt ana- anaa anab anac anai anan anar anat anba anbb anbi anca ancc anct ania anib anic anin anir anit anna annb anni annt anrc anri ant- anta anti antr antt arab arac arai aran arar arat arba arbi arc- arca arci arct aria arib arii arin arit arna arni arnt arr- arra arrc arri arrr arrt arta artc arti artr at-t ataa atab atac atai atan atar atat atca atcc atcr atia atic atin atit atna atra atrc atri atrn atta atti attn attr ba-i baaa baan baar baat baba babb babi babr bac- baca bacc baci bacn bact baia baib baic bain bair bait bana banc bani bann banr bant bar- bara barb barc bari barn barr bart bata batc bati batn batt bbbb bbci bbin bbrc bcaa bcar bcat bcbc bcca bccc bcci bcia bcit bcra bctc bian biar biat biba bibb bibi bica bicc bici biin bin- bina binc bini binn bint bira birb biri birn birr birt bita bitc bitt bnai bnib bnin bnrr bnta brab brac brai bran brat brca brcb bria bric brin brit brna brrr brtc btaa btan btcc btrc btrt bttb caaa caab caac caan caat caba cabi cac- caca cacc caci cacr caia caib caic cain cair cait cana canc cani cann cant cara carb carc cari carn carr cart cat- cata catb catc cati catt cbac cbar cbat cbbc cbca cbcc cbcn cbcr cbct cbia cbir cbit cbna cbrn cbrt cbta cbtc ccaa ccab ccac ccai ccar ccat ccba ccbc ccbn ccca cccb cccc ccci ccic ccii ccir ccna ccnb ccnc ccni ccnr ccra ccrc ccri ccrt cctb cctc cctt ciaa cian ciar ciat ciba cibc cibi cica cicc cici cicr cict ciia ciii ciit cin- cina cinc cini cint cira cirb circ ciri cirr cirt cita citb citi citt cnaa cnac cnbc cnci cnib cnic cnna cnrc cnrr cnrt cnta cntc cntr crab crac crai cran crar crat crbc crca crcc crcr cria crib cric crin crit crna crrt crtc ctab ctan ctba ctbi ctca ctia ctic ctrc ctrn ctta cttn iaaa iaac iaai iaat iaba iaca iacc iacr iact iaia iain iana iara iarc iart iata iatc iati ibac iban ibar ibat ibca ibia ibra ibrc ibri ibtb ibtc icaa icab icac icai ican icar icat icbc icca iccb iccc icci iccn iccr icct icnb icnc icra icrc icrr icrt icta iiac iica iiii iiit iira iirc iita iitr iitt inab inac inai inan inar inat inba inca incb inci incr inia init inna inni innr inra inri inta inti intn intr irac irai iran irar irca ircc iri- iria iric irin irna irra irrc irri irta irti itaa itac itai itan itar itat itia itic itin itra itri itta n-ii naaa naab naac naai naan naar naat naba nabc nabi naca nacc naci naia naib naic nain nair nait nan- nana nanb nani nann nant nara narc nari narn narr nart nata natc nati natt nbaa nbar nbbc nbca nbcc nbci nbia nbic nbti ncaa ncac ncar ncat ncba ncbc ncbi ncca nccc ncci nccn nccr ncct ncia ncit ncna ncnc ncra ncrc ncri ncta nctc nctr niab niac nian nibi nica nicc nici niia niir niit nina nini nira nirt nita nitb nitc niti nitr nnit nnnn nntn nrab nrca nric nrna nrrc nrta ntbc ntcc ntia ntrc nttr raab raan raat raba rabb rabi rac- raca racc raci ract raia raic raii rain rair rait rana ranc rani rann rant rara rarb rari rata rati ratt rbbb rbbr rcac rcbc rccb rccc rcic rcnr rctc rcti riaa riab riai rian riat rib- riba rica ricc rict riia riin rina rinn riri rita riti ritt rnai rnbr rnin rnnt rrat rrna rrrr rtai rtan rtca rtcc taa- taan taar taat taba tabb tabc tabi taca tacc taci tact taia tain tair tait tana tani tann tant tara tarb tarc tari tarn tarr tart tata tatb tati tatr tatt tbar tbca tbcb tbcc tbit tbrb tbta tcca tccc tcnn tctc tiaa tiab tian tiar tiba tibi tica ticc tiit tina tinc tini tinn tint tira tirb tiri tirr tita titc titi titt tnbc tnca tncc traa trab trac trai tran trat trca trcc tri- tria trib tric trin trit trna trra trtc trtr ttab ttbb ttcn tttt