cret crfc crib cric crie crif crit crob croc croe croo cror crot crrt crtc crtf ctbi ctcf ctec ctfc ctfo ctic ctor ctot ctrc ebbc ebbo ebbr ebcc eber ebfc ebic ebit eboe eboo ebor ebro ecbc ecbe eccb eccc ecce ecci ecco ecct ecef ecfc ecfr ecib ecit eco- ecot ecrc ecrf ecri ecrr ect- ectc ectf ecto eeee eefe eeoc eerc eero eetc eete efbr efco efeo efet effi efic efit efor eft- eico eiec eiei eier eiji eire eitb eitc eiti eito eitr ejer ejit ejji ejob ejoo ejot eoir eore eori eotc eoto erbb erbe ercc erce ereb erec erei erer eret erfc erft eric erie erio erit erob eroc eroe eroi eroo errc erre erro etbc etbr etcc etco etec etee eter etfb etfc etfe etic etio etoe etre etro ette etti etto fccf fccj fcic fcii fcot fcto febo fece fect feeb feer feet fefc fefe feff fefi fefo feie feio feir feit feof ferb ferc fere fero ferr fert fete feti fetr fett ffcc ffee ffff ffii ffrr fftf fibe ficc fice fico fict fiec fief fier fifc fife fiff fifi fifo fift fiii fiji fioe fior fire fitc fite fiti fitt fobt foce foci focj foco foer fofo foie foje foof foot for- forb fore fori forj foro forr fort fote foti foto fott frbc frcc free frei freo fret frfc frib fric frie frio frit frob froe frot ft-c fter ftfc ftii i-be ibec ibet ibfi ibie ibot ibrc ibri ibro ibtb ibtc icbc iccb iccc iccf icci icco iccr icct icec icee icef icer icet icfb icoc icor icrc icre icrf icrr icrt iecc ieet ieie ieio iere ieri ietf iett ifbb ifco ifer ific ifit ifor ifrb ifrf ifri ifto iiie iiii iiio iiit iioi iioo iirc iitr iitt ijet ijji iobi ioci ioee iofc ioii ioio ioit ioof iooi iooo iore iori iote iotf ioto irbe ircc iree irer irfe iri- iric irie irio irje irob iroc irrc irre irri irte irtf irti itbe itec iter itet itic itie itif itof itoi itoo itor itrf itri ittf itto j-ro jbob jcbc jccc jcci jcrc jebb jebe jeci jeer jeet jefe jeff jeit jere jeri jero jert jetb jete jeti jett jfet jftr jibb jibe jibi jiet jiff jije jiji jiri jiro jirt jiti jito jjcc jobe jobo joce joco joee jofr joie joio joit joji jojo joof joor joot jore jorf joro jort joto jott jrbr jrtc jtbc jtcc o-eo obbo obec ober obet obie obit oboe oboi obor obot obre obri obro ocbc occc occi occt oce ocee ocef ocet ocre ocro ocrr oct- octe octi octo oec- oecc oeec oere oeti ofcr ofer off- offc offe offo offr ofit ofor ofre oici oier oiii oire oirt oitc oiti oobe oobi oocr ooer ooff ooij ooji oooo oore oort ootb orbb orbe orbi orbo orce orci orco ore- oreb orec oreo orer orfe orff orfi ori- oric orie orif orio orit orji oro- oroe orof oror orot orri orro ortc orte orto otee oter otfc otic otif otit oto- otoe otof otoo otor otre otro otte otti otto rbbb rbbr rcbc rcbo rccb rccc rcet rcfc rcic rctc rcti rebb rebe rebo recc rece reci recr rect reeb reef reet refe reff refi refr reft reif reii reir reit reof reot rere reri rero rert rete reti reto retr rett rfef rffc rfic rftc rib- ribe ribo ricc rice rico rict rief rier riet rife riff rift riif rijf riji rijo riot rire riri rite riti rito ritt rob- robb robe robi robo robt rocc roce roco roer roet rofc rofe roff rofo roif roio roir roit roje roji rojo roob roof rooi roor root rorc rore rori roro rort rotc rote roti rotj roto rotr rott rrfc rrif rrrr rtbf rtcc rtce rtee rtei rtfb rtfc tbcb tbcc tbce tbit tbrb tccc tcfc tctc tebo teco tecr tect teec teef teej teer teet tefc teff tefi teft teic teie teir tejo teor ter- terc tere terf teri terj tero terr tete teti teto tetr tett tfeb tfec tfot tftc tibi ticc tice tico tie- tiee tief tiei tieo tier tiet tiff tifo tift tiit tiji tijo tirb tire tiri tiro tirr titc tite titi tito titt tobe tobi tobo tobt toce toci toco toee toei toer toet toff tofi tofo toft toie toit toji tojo toof toor toot torc tore torf tori toro torr tort totc tote toti toto totr tott trcc tre- trec tree tref trei treo tret trfc trfr tri- trib tric trie trif trio trit troc troe troi troo trot trtc trte trtr ttbb tteo tter ttfc ttff ttoe tttt

-tree bbbee be-er be-ro beber bebic bebot bebti becco becej becic beebe beeft beeri beete beffe befie befit befoe befor beibi beice beier beife beijo beire beite bejte beoci beofe beoff beoir beote berbe berec berei beret berie berio berit berob beroe beror berre berri berte berti berto betee beter betie betio betoo betor betre bett- bette betti betto bibbe bibbo biber bibic bibie bibio bibri bicer bicje biebe biefe biere bieri biert bieti bifer biffi biffo bifor bijce bijie bioci bioco biore birie biroc biter bitit bitof bitte bitti bitto bo-bo bobbi bobet boboc bobr bobre bobri bocce bocci bocet bocor boece boero bofet boffi boffo boibe boice boier boire boiro boite boito bojer bojic booce booco booer booit booji boore boort borbo borce borci borec boree borer boret boric borio borje boro- boroo borot borre borro botet botie botro botte botti brece breef breer breet breit brejo breo- breoc brere breto brett bribe brice brico briec brief brier briot brite brito britt brobo broce broer broft broje broto brrrr btc-e btr-t c-cor c-tec cbeff cbeft ccccc cccii ccett ccifc cciii ccitt cebec ceber cebit ceci- cecie ceco- cecri ceere cefor ceibo ceirt ceoce ceoor cerc- cerce cerci cerco cerec cerej cerer ceret ceric cerie cerio cerje cero- ceroc cerre cerro certe cetic ceto- cette ciber cibir cicer cietc cifer cifft