lurs lurt luse luso luss lust lute luts o-eo occc occt oce ocee ocet oclc ocos ocre ocrl ocro ocrr ocrs oct- octe octo octs ocul ocur oec- oecc oeec oele oere oers oese oest olcc ole- oleo oler oles olet olle ollo olor olos olot olst oltu olur oocr ooer ooes oolo oooo ooos oore oort oose oost oots oous orce orco orcs ore- orec orel oreo orer ores orle orlo orlu oro- oroe oror oros orot orro orrs orse orso orsu ortc orte orto orts orus oscc osce oscl osco osec osee osel oser oses oset oslo osoo osor osos osro osse osso ossu ostc oste ostr osts osul otcl otee oter otes oto- otoe otoo otor otos otre otro otrs otse otso otsu otte otto otts ottu otur otus oucc ouer oule ouls oulu our- oure ouro ours ourt ouse oust out- oute outo outs ouu- rccc rccs rcet rcle rcls rcos rcsc rcsl rcss rctc rcts recc rece recr recs rect recu reel rees reet rele rell relo rels relt reol reos reot reou rere rero rers rert reru rese reso ress rest rete reto retr rets rett reue reul reus reut reuu rlcs rlee rleu rlls rocc roce roco rocs roel roer roes roet role roll rolo rolt rool roor roos root rorc rore roro rort roru rosc rose roso ross rost rotc rote rotl roto rotr rots rott roue roul rous rout rrle rrrr rscc rscs rsee rslc rsos rsre rssl rsts rstu rtcc rtce rtee rtes rtle rtls rtlt rtss rtts ruce ruct ruel ruer rues ruet rule rull rulo rurc rure ruro rurs ruru ruse ruso russ rust rusu rute rutl ruto ruts rutt rutu s-os sccc scce sccl sccs scct scec scee scel scer scet scl- sclc scls scol scoo scor scot scr- scrc scre scrs scsc scsl scso scsr scst scsu sctc sctl scto sctr scts scul scur scut se-c se-e se-o se-s se-t se-u sec- secc sece seco secr secs sect secu seec seel seer sees seet seeu sele sell selo sels selt selu seoc seol serc sere sero serr sers sert seru sesc sese seso sess sest set- setc sete setl seto sets sett seul seur slcc slcu slee sler sles slet sloc sloe sloo slos slot slrc slre slrs slsc slst slsu slts sluc slue slur slut soce socl soco socr socs soec soel soeo soes sole soll solo solr sols solt sool soor soos soot sore soro sorr sors sort soru sose soso soss sost sotc sote sotl soto sots sotu soue soul sour sous sout srcc srct srec sreo sres sros srtr sscc ssce sscs ssec ssee sses sset sslc ssle sslt ssoc ssot ssrc ssrl ssrs sssc ssss sstc sstl ssts stcc stcs stcu stec stee stel steo ster stes stet stlc stle stlo stlt stoe stol stoo stor stos stot stou strc stre stro strs stru stss sttc sttr stuc stue stul stur stus stut suc- succ sucr sucs suee suel suer sues suet sueu sul- sulc sule sull sulo sult sulu suor suos sur- surc sure suro surr surs surt suru sus- suse suso suss sust susu sute suto sutu suus tccc tccu tcos tctc tcts tcul tecl teco tecr tecs tect teec teel teer tees teet tel- telc tele tell telo tels telt telu teor teos ter- terc tere tero terr ters teru tesc tese tesl teso tess test tete teto tetr tets tett tetu teut tlco tlos tlrs toce toco toee toer toes toet tol- tole toll tolo tolt tolu tool toor toos toot torc tore toro torr tors tort toru tosc tose toso toss tost tosu totc tote toto totr tots tott toul tour tous tout trcc trcl tre- trec tree treo tres tret treu troc troe troo tros trot trou trst trtc trte trtr truc true trus trut truu tscc tsec tses tset tsol tsos tsou tsse tssr tsst tstc tsts tteo tter ttoe ttss tttt ttul tucc tuco tuel tuer tues tuet tule tull tulo tulu tuor tuos turc ture turo turr turs turt turu tusc tuss tust tute tutl tuto tuts tutt tutu tuuo ucel uces ucos ucrc ucsc ucst ucsu ucut uele uell uers uess ulcc ulco ulee uleo ules ulle ullo ullr ulo- uloc ulos ulto ults ultt ulul ulus uocc uolc uor- uore ure- ures uret urle urls uro- urol uroo urre urse urso urss ursu urte urts urur urus urut uscc usce usco uscs usee usel user uses uset usle uslu usoc usoe usos ussc usse ussr usss usst ussu ustc uste usto usts usul usus utec utel uter utes utor utsc utsl utto uttu uulu uuoc uuuu

-tree c-cor c-tec ccccc cccsl ccell ccett ccrcl ccrel cctrl ceco- cecos ceele ceelo ceere ceese celco celer celes cell- celle cello cells celo- celos celse celso celss celte celts ceoce ceoor ceorl 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 cleco cleer cleet cleos clerc clere cless clete cleto clett cloes cloor cloos cloot clore clort close closo closs clost clote clots cloue clour clous clout clue- cluer clues clurr cluse cluss clute cluts clutt co-co cocc- cocce cocco coceo cocle cocol cocos cocto cocur cocus coel- coelo coels coers coest coete coeur coeus cole- colee colel coleo coler coles colet coll- colle collo colls colo- color colos colre colts colur colus cooee cooer coole coolo cools coore coors coost coote coots corce core- coree corel corer cores coreu corlu coro- corol corot corre corrl corrs corse corso corss corsu corte corto corts corus cosco cosec coser coses coset cosse cost- coste costo costs cotel coter cotes cotle cotos cotso cott- cotte cotto cotts cottu cotul couco couer coule coull coult coure courl cours court couru couse coust couto couts coutu crece creel creer crees crele crell creo- creos creot cresc crese creso cress crest crete cretu creu- creue creul