-vac a-ii a-iv aaaa aaab aaac aaai aaar aaav aaba aabb aabc aabi aabt aaca aacb aacc aaci aaco aacr aact aacv aaib aaic aaii aaoo aara aarc aari aaro aart aata aatc aatt aava abaa abab abac abai abar abat abb- abba abbb abbi abbo abbr abbt abca abcb abcc abci abcr abct abia abib abic abir abit aboa abob aboo abor abot abov abra abrc abri abro abta abva ac-t acaa acab acac acai acar acat acba acca accc acci acco acct aci- acia acic acir acoa acor acot acr- acra acrc acri acro acrr acrv acta actc acti acto actt actv acvv aiai aiba aibo aica aicc aicr aiia aiib aiic aiir aioc aioi aira airi airo airt aita aiti aitr aitt aiva aoba aoca aora aorb aort aotc arab arac arai arar arat arba arbi arc- arca arci arco arct aria arib arii ario arit aroa arob aroi aroo aror arr- arra arrc arri arro arrr arrt arta artc arti arto artr artv arva arvi arvo at-t ataa atab atac atai atar atat atca atcc atco atcr atia atic atit atob atoc atoi ator atot atra atrc atri atro atta atti atto attr atvi avab avao avar avat avcc avco avia avic avio avit aviv avor avot avra avri avro avva avvo ba-i baaa baar baat baba babb babi babo babr bac- baca bacc baci baco bact baia baib baic baio bair bait bar- bara barb barc bari baro barr bart bata batc bati bato batt bava bavi bbbb bbci bbrc bcaa bcar bcat bcbc bcca bccc bcci bcia bcit bcor bcra bctc bcvo biao biar biat biba bibb bibi bibo bica bicc bici bico bio- bioc bioi biot bira birb biri biro birr birt bita bitc bito bitt bivi boab boac boai boar boat boba bobb bobi bobo boca boco boi- boii boit boob booc boor boot bor- bora bori boro borr bort bota botb boti boto bott bova bovi bovo brab brac brai brao brat brav brca brcb bria bric brio brit broa brob broc broo bror brot brrr brtc brvi btaa btcc btob btor btrc btrt bttb btvi c-bo caaa caab caac caat caba cabi cabo cac- caca cacc caci caco cacr caia caib caic caio cair cait caoi caor cara carb carc cari caro carr cart cat- cata catb catc cati cato catt catv cava cavi cavo cbac cbar cbat cbbc cbca cbcc cbcr cbct cbia cbir cbit cbot cbrt cbta cbtc cbtv cbva cbvb cbvr ccaa ccab ccac ccai ccar ccat ccba ccbc ccca cccb cccc ccci cccv ccic ccii ccir cciv ccob ccoc ccra ccrc ccri ccrt cctb cctc cctt cctv ccvi ccvo ciaa ciao ciar ciat ciba cibc cibi cibo cica cicc cici cico cicr cict ciia ciii ciit ciob cior cira cirb circ ciri ciro cirr cirt cita citb citi cito citt citv civa civc civo coai coat coba cobb cobi cobo coca coco coct coia coir coit coob coot cor- cora corb corc cori coro corr cort cota cotb cotc coti coto cott cova covo crab crac crai crar crat crbc crca crcc crcr cria crib cric crit crob croc croo cror crot crrt crtc crtv ctab ctba ctbi ctca ctia ctic ctor ctot ctrc ctta ctvo ctvt cvac cvar cvca cvcc cvii cvra cvrr iaaa iaac iaai iaat iaba iaca iacc iacr iact iaia iara iarc iart iata iatc iati iava ibac ibar ibat ibca ibia ibot ibra ibrc ibri ibro ibtb ibtc icaa icab icac icai icao icar icat icbc icca iccb iccc icci icco iccr icct icoc icor icra icrc icrr icrt icta ictv iiac iica iiii iiio iiit iioi iioo iira iirc iita iitr iitt ioba iobi ioci ioii ioio ioit iooi iooo iora iori iota ioto irac irai irao irar irca ircc iri- iria iric irio irob iroc irov irra irrc irri irta irti itaa itac itai itar itat itia itic itoi itoo itor itra itri itta itto ivai ivao ivar ivbv ivic ivor oaic oara obai obba obbo obia obit oboi obor obot obra obri obro obvi ocab ocac ocat ocbc occa occc occi occt ocra ocro ocrr oct- octa octi octo oiav oiba oici oiii oira oirt oita oitc oiti ooaa ooba oobi oocr ooia oooo oora oort ootb orab orac orai orao orar orat orav orba orbb orbi orbo orca orci orco ori- oria oric orio orit oro- oror orot orra orri orro orta ortc orto orvr otac otar otic otit oto- otoo otor otov otra otro otta otti otto ovar ovi- ovo- ovoo ovot ovra raab raat raba rabb rabi rabo rac- raca racc raci raco ract racv raia raic raii rair rait raob raoc rara rarb rari raro rata rati rato ratt rava ravi rbbb rbbr rcac rcbc rcbo rccb rccc rcic rctc rcti rctv rcvr riaa riab riai riat rib- riba ribo rica ricc rico rict riia riot riri rita riti rito ritt riva rivo roab roar roat rob- roba robb robi robo robt roca rocc roco roia roio roir roit roob rooi roor root rora rorc rori roro rort rota rotc roti roto rotr rott rova rovi rovo rrat rrrr rtai rtca rtcc rtva rtvi rv-c rvca taa- taar taat taba tabb tabc tabi tabo taca tacc taci taco tact tacv taia taio tair tait taoa taor tara tarb tarc tari taro tarr tart tata tatb tati tato tatr tatt tatv tava tavi tavo tbar tbca tbcb tbcc tbit tbrb tbta tbvi tcca tccc tcov tctc tiaa tiab tiao tiar tiba tibi tica ticc tico tiit tira tirb tiri tiro tirr tita titc titi tito titt tiva tivi tivo toab toat toba tobi tobo tobt toca toci toco toit tooa toor toot tora torc tori toro torr tort torv tota totc toti toto totr tott tova tovo traa trab trac trai trao trat trav trca trcc tri- tria trib tric trio trit troa troc troi troo trot trra trtc trtr ttab ttbb tttt tvac tvri tvro tvrr tvtv vaar vaat vaca vaco vaia vaio vair