sect secu seec seeh seep seer sees seet seeu sehe sehr sehs seoc seop sepe sepo sepp sepr seps sept sepu serc sere sero serp serr sers sert seru sesc sese sesh seso sess sest set- setc sete seth seto sets sett seur shcc shcp she- shee sheh sheo shep sher shes shet sheu shhh shhs shoe shoo shop shor shos shot shou shps shpt shre shrp shrs shsc shts shue shup shur shus shut shuu soce soch soco socr socs soec soeo soep soes sohh soho sohp sohs sohu soop soor soos soot sope soph sopo sopp sops sopu sore sorh soro sorr sors sort soru sose sosh soso soss sost sotc sote soth soto sotp sots sotu soue soup sour sous sout spcc spco spcs spec spee sper spes spet sphr sphs spht spoc spoo spop spor spos spot spps spro sprs spse spso spsp spss spst sptc spto sptr spts spue spur spus sput srcc srch srct srec sreo sres srhs sros srpc srps srpt srsp srtp srtr sscc ssce sscp sscs ssec ssee ssep sses sset sshs ssoc ssop ssot sspc sspe sspo ssps sspt ssrc ssrs sssc sssh ssss sstc ssth sstp ssts stcc stch stcp stcs stcu stec stee steo step ster stes stet sths stoe stoo stop stor stos stot stou stpp stps strc stre stro strs stru stss sttc sttr stuc stue stup stur stus stut suc- succ such sucr sucs suee suer sues suet sueu suho suhr suoh suor suos sup- supe suph supo supp supr sups supt sur- surc sure suro surp surr surs surt suru sus- suse suso susp suss sust susu sute suto sutu suus tccc tccu tcep tch- tche tchh tcho tchp tchr tchs tchu tcos tcpo tcsh tctc tcts tech teco tecr tecs tect teec teer tees teet teho tehr teoh teor teos tepe tepp tepu ter- terc tere tero terp terr ters teru tesc tese tesh teso tesp tess test tete teth teto tetr tets tett tetu teut thch the- thec thee theo thep ther thes thet theu thhp thoe thoo thor thos thot thou thpp 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 top- tope toph topo topp tops topt topu torc tore toro torp torr tors tort toru tosc tose tosh toso toss tost tosu totc tote toth toto totr tots tott touh toup tour tous tout tpcp tpcs tper tphs tppp tppr tprs tpsc tpte tptp tptr tput trcc tre- trec tree treo tres tret treu trhs troc troe troo trop tros trot trou trpc trpe trpp trps trst trtc trte trtr truc true trus trut truu tscc tscp tsec tses tset tshe tshs tsop tsos tsou tspo tsps tspt tsse tssr tsst tstc tsts tsup ttcp tteo tter ttoe ttop ttss tttt tucc tuch tuco tuer tues tuet tuhs tuht tuhu tuor tuos tupe tuph tupo tups tupu turc ture turo turp turr turs turt turu tusc tush tuss tust tute tuto tuts tutt tutu tuuo u-rp uccp uces uche ucho uchs ucos ucph ucrc ucsc ucst ucsu ucut uers uess uher uhoh uhrs uhss uhuh uhup uocc uor- uore upcs upor upos uppc uppe uppp uppu upsc upse upto upup urch ure- ureh ures uret urho uro- uroo urpo urre urrh urse urso urss ursu urte urth urts urup urur urus urut uscc usce usch usco uscs usee user uses uset usho ushr ushs ushu usoc usoe usos uspc uspo uspp usps ussc usse ussr usss usst ussu ustc uste usto ustp usts usus utec utep uter utes uthe utor utsc utto uttu uucp uuoc uuuu

-tree c-cor c-p-c c-pop c-tec ccccc ccett ccups cech ceche cecht ceco- cecos ceere ceese ceoce ceoor ceose ceous cepes cepet cepos cepot ceppo cerc- cerce cerco cercs cerec cerer ceres ceret cero- ceroc ceros cerou cerps cerre cerro cerrs cerse cerss certe certs cerus cesce cescr cesse ceste cests cetes ceto- cette cetus chech cheep cheer chees cheet cheho chehr cheo chepe chepo chere chero cherp chert cheru chese chess chest chete cheth cheto chets chett cheue chher choco chocs choes choop choor chope chops chopt chor- chore choro chors chort chose choss chost chote chott choue choup chout chueh chuet chupe chupp chur- chure churr churs churt churu chuse chuss chust chute chuts co-co co-op cocc- cocce cocco coceo coche cocos cocto cocur cocus coepe coers coest coete coeur coeus cohee cohoe cohoo cohos cohrs cohse cohst cohue cooch cooee cooer coope coops coopt coore coors coost coote cooth coots copce copec coper copes copos coppe coppo copps copr- copre copro copse copte copto copts copur copus coput corce core- coree corer cores coreu coro- corop corot corpe corps 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 coupe coups coure cours court couru couse coust couth couto couts coutu cpctc cpesc cphos cphpc crece creep creer crees creo- creop creos creot crepe crept crepu cresc crese creso cress crest crete cretu creu- creue creup croce croco crocs croes crooe croop croos croot cropc crope cropo crops crore crose cross crost crote croth crots crott croup crous crout crres cruce cruet cruor crupe crure cruse crush crust cruth cruts csche csere cspot cspro csprs cstcc cteep ctree cttee cuche cuero cuers cueto cueup cuoco cuore cuper cupes cupr- cupro curce curch curer cures curet curre curro currs curse curst curto curts curup cusco cusec cuser cusop cusps cusse cusso custe cutch cutco cutcu cutee cuter cutes cuthe cutro cutto cutts cutup e-cps e-pro eccho eccup eches echos echss echte ecorp ecots ecrus ecser ecspp ecthr ecto- ector ectot ecups eeeee eepee eeros eetch ehesp ehret eocho eochu eorre eoste epcos epcot epees eperc epeus epher epheu ephor ephus epoch epops epopt epost epote eppes epure erech