-vac aaaa aaac aaae aaar aaav aaca aacc aace aaco aacr aact aacv aaea aaec aaev aaoe aaoo aara aarc aare aaro aart aata aatc aatt aava ac-t acaa acac acae acar acat acca accc acce acco acct ace- acea acec acer acet acev acoa acoe acor acot acr- acra acrc acre acro acrr acrv acta actc acte acto actt actv acvv aeac aect aeer aer- aera aerc aero aeta aetc aeto aetr aett aeva aoca aoce aora aort aotc arac arae arar arat arc- arca arce arco arct area arec aree areo aret arev aroa aroe aroo aror arr- arra arrc arre arro arrr arrt arta artc arte arto artr artv arva arve arvo at-t ataa atac atae atar atat atca atcc atco atcr atea atec atee ateo ater atoc atoe ator atot atra atrc atre atro atta atte atto attr avao avar avat avcc avce avco avea avec aveo aver avor avot avra avre avro avva avvo caaa caac caat cac- caca cacc cace caco cacr caec caer caor cara carc care caro carr cart cat- cata catc cate cato catt catv cava cave cavo ccaa ccac ccar ccat ccca cccc cccv ccee ccoc ccra ccrc ccre ccrt cctc cctt cctv ccvo ceac cear ceat cec- ceca cece ceco cect ceec ceor cer- cera cerc cere cero cert cet- ceta cete ceto cetv ceva cevo coat coca coce coco coct coot cor- cora corc core coro corr cort cota cotc cote coto cott cova cove covo crac crar crat crca crcc crce crcr cre- crea crec cree creo cret croc croe croo cror crot crrt crtc crtv ctae ctca ctec ctor ctot ctrc ctta ctvo ctvt cvac cvar cvca cvcc cver cvet cvra cvrr cvte eaca eacc eaec eara eare earo eart eata eate eave ecaa ecac ecao ecar ecat ecca eccc ecce ecco ecct eco- ecot ecra ecrc ecrr ecrv ect- ecta ectc ecto ectv eeca eeea eeee eeoc eera eerc eero eeta eetc eete eeva eora eore eota eotc eoto erat erca ercc erce erec erer eret erev eroc eroe eroo erra errc erre erro erta erve etat etcc etco etec etee eter etoe etra etre etro etta ette etto etvo evac evae evar evat evea ever evet evoe evoo evra evre o-eo oaer oara oare oate ocac ocat occa occc occt oce ocee ocet ocra ocre ocro ocrr oct- octa octe octo oec- oeca oecc oeec oera oere oeta ooaa oocr ooer oooo oora oore oort orac orae orao orar orat orav orca orce orco ore- orea orec oreo orer oro- oroe oror orot orra orro orta ortc orte orto orve orvr otac otar otea otee oter oto- otoe otoo otor otov otra otre otro otta otte otto ovar ovee over ovet ovo- ovoo ovot ovra ovre raat rac- raca racc race raco ract racv raec raer raoc rara rare raro rata rate rato ratt rava rave rcac rccc rcet rctc rctv rcvr rea- reac reae reao rear reat reca recc rece recr rect reet reev reot rera rere rero rert reta rete reto retr rett reva reve revo roar roat roca rocc roce roco roea roer roet roev roor root rora rorc rore roro rort rota rotc rote roto rotr rott rova rove rovo rrat rrrr rtca rtcc rtce rtee rtva rtve rv-c rvca rver taa- taar taat taca tacc tace taco tact tacv taec taer taoa taor tara tarc tare taro tarr tart tata tate tato tatr tatt tatv tava tave tavo tcca tccc tcov tctc teac tear teat teca teco tecr tect teec teer teet teev teor ter- tera terc tere tero terr teta tete teto tetr tett teva toat toca toce toco toea toee toer toet tooa toor toot tora torc tore toro torr tort torv tota totc tote toto totr tott tova tove tovo traa trac trae trao trat trav trca trcc tre- trea trec tree treo tret trev troa troc troe troo trot trra trtc trte trtr tteo tter ttoe tttt tvac tver tvro tvrr tvtv vaar vaat vaca vace vaco vara vare varr vart vata vate vato vatt vava vcat vear veat vecc veer veet veor ver- vera vere vero vert veta vete veto vetr veve vevo voar voat voca voce voer voet vooc voor voot vor- vora vore voro vort vota vote voto vrac vrav vreo vret vroc vrot vrto vtac vtec vver vvvv