oecc oeec oere oers oese oest ohcc ohee oher ohho ohhs ohoh ohos ohre ohso ohss ohte ohto ohtu ohus oocr ooer ooes ooho oohs oooh oooo ooos oore oort oose oost oots oous orce orch orco orcs ore- orec oreh oreo orer ores orhe orhs oro- oroe oror oros orot orro orrs orse orso orsu ortc orte orth orto orts orus oscc osce osco osec osee oseh oser oses oset oshc oshe osho oshs oshu osoo osor osos osro osse osso ossu ostc oste ostr osts otee oter otes othe otho othr oths oto- otoe otoh otoo otor otos otre otro otrs otse otso otsu otte otto otts ottu otur otus oucc ouch ouer our- oure ouro ours ourt ouse oust out- oute outh outo outs ouu- rccc rccs rcet rchs rcos rcsc rcss rctc rcts recc rece rech recr recs rect recu rees reet rehe rehs reht reos reot reou rere rero rers rert reru rese resh reso ress rest rete reth reto retr rets rett reue reus reut reuu rhce rhee rheo rhes rhet rhhs rhoc rhoh rhos rhue rhus rocc roce roch roco rocs roer roes roet rohe rohr rohs rohu roor roos root rorc rore roro rort roru rosc rose rosh roso ross rost rotc rote roth roto rotr rots rott roue rouh rous rout rrhs rrrr rscc rsch rscs rsee rshs rsos rsre rsts rstu rtcc rtce rtee rtes rths rtss rtts ruce ruch ruct ruer rues ruet ruhe ruhh ruhr ruhs rurc rure ruro rurs ruru ruse rush ruso russ rust rusu rute ruth ruto ruts rutt rutu s-os sccc scce sccs scct scec scee scer scet sch- sche schh scho schr schs scoh scoo scor scot scr- scrc scre scrs scsc scsh scso scsr scst scsu sctc scto sctr scts scur scut se-c se-e se-h se-o se-s se-t se-u sec- secc sece sech seco secr secs sect secu seec seeh seer sees seet seeu sehe sehr sehs seoc serc sere sero serr sers sert seru sesc sese sesh seso sess sest set- setc sete seth seto sets sett seur shcc she- shee sheh sheo sher shes shet sheu shhh shhs shoe shoo shor shos shot shou shre shrs shsc shts shue shur shus shut shuu soce soch soco socr socs soec soeo soes sohh soho sohs sohu soor soos soot sore sorh soro sorr sors sort soru sose sosh soso soss sost sotc sote soth soto sots sotu soue sour sous sout srcc srch srct srec sreo sres srhs sros srtr sscc ssce sscs ssec ssee sses sset sshs ssoc ssot ssrc ssrs sssc sssh ssss sstc ssth ssts stcc stch stcs stcu stec stee steo ster stes stet sths stoe stoo stor stos stot stou strc stre stro strs stru stss sttc sttr stuc stue stur stus stut suc- succ such sucr sucs suee suer sues suet sueu suho suhr suoh suor suos sur- surc sure suro surr surs surt suru sus- suse suso suss sust susu sute suto sutu suus tccc tccu tch- tche tchh tcho tchr tchs tchu tcos tcsh tctc tcts tech teco tecr tecs tect teec teer tees teet teho tehr teoh teor teos ter- terc tere tero terr ters teru tesc tese tesh teso tess test tete teth teto tetr tets tett tetu teut thch the- thec thee theo ther thes thet theu thoe thoo thor thos thot thou thre thro thru thse thsr thss thtr thts thue thur thus toce toch toco toee toeh toer toes toet toho tohu tooh toor toos toot torc tore toro torr tors tort toru tosc tose tosh toso toss tost tosu totc tote toth toto totr tots tott touh tour tous tout trcc tre- trec tree treo tres tret treu trhs troc troe troo tros trot trou trst trtc trte trtr truc true trus trut truu tscc tsec tses tset tshe tshs tsos tsou tsse tssr tsst tstc tsts tteo tter ttoe ttss tttt tucc tuch tuco tuer tues tuet tuhs tuht tuhu tuor tuos turc ture turo turr turs turt turu tusc tush tuss tust tute tuto tuts tutt tutu tuuo uces uche ucho uchs ucos ucrc ucsc ucst ucsu ucut uers uess uher uhoh uhrs uhss uhuh uocc uor- uore urch ure- ureh ures uret urho uro- uroo urre urrh urse urso urss ursu urte urth urts urur urus urut uscc usce usch usco uscs usee user uses uset usho ushr ushs ushu usoc usoe usos ussc usse ussr usss usst ussu ustc uste usto usts usus utec uter utes uthe utor utsc utto uttu uuoc uuuu

-tree c-cor c-tec ccccc ccett cech ceche cecht ceco- cecos ceere ceese ceoce ceoor ceose ceous cerc- cerce cerco cercs cerec cerer ceres ceret cero- ceroc ceros cerou cerre cerro cerrs cerse cerss certe certs cerus cesce cescr cesse ceste cests cetes ceto- cette cetus chech cheer chees cheet cheho chehr cheo chere chero chert cheru chese chess chest chete cheth cheto chets chett cheue chher choco chocs choes choor chor- chore choro chors chort chose choss chost chote chott choue chout chueh chuet chur- chure churr churs churt churu chuse chuss chust chute chuts co-co cocc- cocce cocco coceo coche cocos cocto cocur cocus coers coest coete coeur coeus cohee cohoe cohoo cohos cohrs cohse cohst cohue cooch cooee cooer coore coors coost coote cooth coots corce core- coree corer cores coreu coro- corot corre corrs corse corso corss corsu corte corto corts corus cosch cosco cosec coser coses coset coshe coshh cosse cost- coste costo costs cotch coter cotes cothe cotos cotso cott- cotte cotto cotts cottu couch couco couer couhe coure cours court couru couse coust couth couto couts coutu crece creer crees creo- creos creot cresc crese creso cress crest crete cretu creu- creue croce croco crocs croes crooe croos croot crore crose cross crost crote croth crots crott crous crout crres cruce cruet cruor crure cruse crush crust cruth cruts csche csere cstcc ctree cttee cuche cuero cuers cueto cuoco cuore curce curch curer cures