o-eo occc occt ocds oce oced ocee ocet ocos ocre ocro ocrr ocrs oct- octe octo octs ocur oddd odds oded odeo oder odes odet odoo odor odos odot odou odso odts odtu odur odus oec- oecc oedo oeds oeec oere oers oese oest oocr ooer ooes oooo ooos oord oore oort oose oost oots oous orce orco orcs orde ordo ords ordu ore- orec ored oreo orer ores oro- oroe oror oros orot orro orrs orse orso orsu ortc orte orto orts orus oscc osce osco osec osed osee oser oses oset osoo osor osos osrd osro ossd osse osso ossu ostc oste ostr osts otcd oted otee oter otes oto- otoe otoo otor otos otre otro otrs otse otso otsu otte otto otts ottu otur otus oucc oudc oude ouds oued ouer our- oure ouro ours ourt ousd ouse oust out- oute outo outs ouu- rccc rccs rcdc rcde rcds rcet rcos rcrd rcsc rcsd rcss rctc rcts rder rdoc rdos rdso recc recd rece recr recs rect recu redc redd rede redo redr reds redu reed rees reet reod reos reot reou rerd rere rero rers rert reru rese reso ress rest retd rete reto retr rets rett reue reus reut reuu rocc roce roco rocs rodd rode rodo rods roed roer roes roet rood roor roos root rorc rore roro rort roru rosc rose roso ross rost rotc rote roto rotr rots rott roud roue rous rout rred rrrr rscc rscs rsdd rsds rsee rsos rsre rsts rstu rtcc rtce rtdt rtee rtes rtss rtts ruce ruct rudd rude rudo ruds rued ruer rues ruet rurc rurd rure ruro rurs ruru ruse ruso russ rust rusu rute ruto ruts rutt rutu ruud s-os sccc scce sccs scct scdc scds scec scee scer scet scoo scor scot scr- scrc scre scrs scsc scsd scso scsr scst scsu sctc sctd scto sctr scts scud scur scut sdcc sdco sddc sdds sder sdes sdet sdot sdrc sdrs sdsc sdss sdsu se-c se-d se-e se-o se-s se-t se-u sec- secc secd sece seco secr secs sect secu sede sedo seds seec seed seer sees seet seeu seoc seod serc serd sere sero serr sers sert seru sesc sese seso sess sest set- setc sete seto sets sett seur soce soco socr socs sodd sode sodo sods sodu soec soeo soes sood soor soos soot sord sore soro sorr sors sort soru sose soso soss sost sotc sote soto sots sotu soud soue sour sous sout srcc srct srde srec sreo sres sros srsd srtr sscc ssce sscs ssdc ssdd ssec ssee sses sset ssoc ssot ssrc ssrs sssc ssss sstc sstd ssts stcc stcs stcu stds stec sted stee steo ster stes stet stod stoe stoo stor stos stot stou strc strd stre stro strs stru stss sttc sttd sttr stuc stud stue stur stus stut suc- succ sucr sucs sudd sude sudo suds sued suee suer sues suet sueu suor suos sur- surc surd sure suro surr surs surt suru sus- susd suse suso suss sust susu sute suto sutu suus tccc tccu tcdd tcos tctc tcts tdes tdor tdse tdss teco tecr tecs tect tedd tede teds teec teed teer tees teet teor teos ter- terc tere tero terr ters teru tesc tesd tese teso tess test tete teto tetr tets tett tetu teut toce toco todd tode todo tods todt todu toed toee toer toes toet tood toor toos toot torc tord tore toro torr tors tort toru tosc tose toso toss tost tosu totc totd tote toto totr tots tott tour tous tout trcc tre- trec tred tree treo tres tret treu troc trod troe troo tros trot trou trsd trst trtc trte trtr truc trud true trus trut truu tscc tsec tses tset tsos tsou tsse tssr tsst tstc tsts tteo tter ttoe ttss tttt tucc tuco tude tudu tuer tues tuet tuor tuos turc turd ture turo turr turs turt turu tusc tusd tuss tust tute tuto tuts tutt tutu tuuo ucdc ucdd uces ucos ucrc ucsc ucsd ucst ucsu ucut udds uder udet udoo udos udot udsd udts uers uess uocc uor- uore urde urds urdu ure- ured ures uret uro- uroo urre urse urso urss ursu urte urts urur urus urut uscc usce usco uscs usdc usde usdo usds usdt used usee user uses uset usoc usoe usos ussc usse ussr usss usst ussu ustc uste usto usts usus utec uter utes utor utsc utto uttu uuoc uuuu

-tree c-cor c-dot c-tec ccccc cccsd ccett cders cduce ceco- cecos ceddo ceded ceder cedes cedor cedr- cedre cedro ceede ceedo ceere ceese ceoce ceoor ceose ceous cerc- cerce cerco cercs cerdo cerec cered cerer ceres ceret cero- ceroc ceros cerou cerre cerro cerrs cerse cerss certe certs cerus cesce cescr cesse ceste cests cetes ceto- cette cetus co-co co-ed cocc- cocce cocco coceo cocos cocto cocur cocus codco codde codec coded coder codes codo codos codru coeds coers coest coete coeur coeus coode cooed cooee cooer coord coore coors coost coote coots corce corde cords core- cored coree corer cores coreu coro- corod corot corre corrs corse corso corss corsu corte corto corts corus cosco cosec coser coses coset cosse cost- coste costo costs coted coter cotes cotos cotso cott- cotte cotto cotts cottu couco coude couer courd coure cours court couru couse coust couto couts coutu crece crede credo creds creed creer crees creo- creos creot cresc crese creso cress crest crete cretu creu- creue croce croco crocs crode crodo croes crood crooe croos croot crore crose cross crost crote crots crott croud crous crout crres cruce crude crudo cruds cruet cruor crure cruse crust cruts csere csode cstcc ctdrs ctree cttee cudde cudos cudot cuero cuers cueto cuoco cuore curce curds cured curer cures curet curre curro currs curse curst curto curts cusco cusec cuser cusse cusso custe cutco cutcu cutee cuter cutes cutro cutto cutts d-cru d-dot d-rod dcore ddddd ddost deces decet decor decos decss decur decus dedde dedee