ktrt ktrw ktsc ktsf ktsr ktst ktsw kttc kttf kttk kttr ktts kttt kttw ktws kwck kwcr kwee kwes kwfc kwfr kwfs kwft kwkc kwkk kwkr kwkw kwre kwrf kwrk kwrr kwrs kwrt kwrw kwsc kwsk kwss kwst kwsw kwtr kwts kwtw kwwf kwwk kwwr kwws kwwt rccc rccs rcet rcfc rcsc rcss rctc rcts recc rece reck recr recs rect reef reek rees reet refe reff refr refs reft reke reks rekt rere rers rert rese ress rest rete retr rets rett rewe rews rfef rffc rftc rkkf rkss rkts rrfc rrrr rscc rscs rsee rsfc rsre rsts rtcc rtce rtee rtes rtfc rtss rtts rwcs sccc scce sccs scct scec scee scer scet scew scfc scfe sck- scr- scrc scre scrs scsc scsr scst sctc sctr scts scwe se-c se-e se-f se-k se-s se-t se-w sec- secc sece seck secr secs sect seec seef seek seer sees seet seew seff seft seke sekk sekt serc sere serf serk serr sers sert sesc sese sess sest set- setc sete setf sets sett sewe sewr sews sfcc sfcs sfcw sfer sffc sfrc sfss sfts skee sker skes sket skew skfc skrt skss skwe skws srcc srct srec sres srfc srtr sscc ssce sscs ssec ssee sses sset ssfc ssrc ssrs sssc sssf ssss sstc ssts ssws stcc stcs stec stee stef stek ster stes stet stew stfc stfw stks strc stre strk strs stsf stss sttc sttr stwe swcc swee swer swet swfc swre swss swte swts tccc tcfc tctc tcts teck tecr tecs tect teec teef teek teer tees teet tefc teff teft teke ter- terc tere terf terk terr ters tesc tese tess test tete tetr tets tett tews tfec tfrs tfss tftc tkts trcc tre- trec tree tref trek tres tret trew trfc trfr trst trtc trte trtr trwe tscc tsec tses tset tsfc tsks tsse tssf tssr tsst tstc tsts tswe tter ttfc ttff ttss tttt twee twer twke twss wccc wcce wccf wcck wccr wccs wcct wccw wcec wcee wcef wcer wcet wcfc wcfr wcfs wcft wcfw wckf wckk wckr wcks wckt wckw wcrc wcre wcrk wcrr wcrs wcrt wcrw wcsc wcsf wcsk wcsr wcss wcst wcsw wctc wcte wctf wctk wctr wcts wctt wctw wcwc wcwf wecc wecf weck wecr wecs wect wecw weec weef week weer wees weet wefc wefe weff wefr wefs weft wekc weke wekr weks wekt wekw wer- werc were werf werk werr wers wert werw wesc wese wesr wess west wetc wete wetf wetk wetr wets wett wewc wewe wfcc wfcf wfcr wfcs wfct wfer wffc wfff wfks wfrc wfre wfrf wfrk wfrs wfrw wfsc wfse wfsr wfss wfst wftc wfte wftf wftk wftr wftw wfwc wkce wkcf wkcs wkct wkcw wkef wkes wket wkew wkfc wkfe wkff wkfs wkkc wkkf wkkr wkks wkkt wkkw wkrc wkre wkrk wkrr wkrs wkrt wksc wkse wksf wksk wksr wkss wkst wksw wktc wkte wktf wktk wktr wkts wktt wkwc wkwf wkws wrce wrck wrcr wrcs wrct wrcw wrec wree wrek wrer wret wrew wrfc wrfe wrff wrfk wrfs wrft wrfw wrkc wrkf wrkk wrkr wrks wrkt wrkw wrrc wrre wrrk wrrs wrrw wrsc wrse wrsf wrsr wrss wrsw wrtc wrte wrtr wrts wrtw wrwc wrwr wscc wscf wscr wscs wscw wsek wses wset wsew wsfc wsff wsfr wsfs wsfw wske wskk wskr wskw wsrc wsre wsrf wsrk wsrs wsrt wsrw wssc wssr wsss wsst wssw wstc wstf wstk wstr wsts wstt wstw wswr wsws wswt wsww wtcc wtcf wtck wtcr wtcs wtct wtcw wtfc wtfk wtkc wtke wtkf wtkk wtkr wtks wtkt wtkw wtrc wtre wtrs wtrt wtrw wtse wtsf wtsk wtsr wtss wttc wtte wttf wttr wtts wttt wttw wtwf wtwk wtwr wtws wtwt wtww wwcf wwck wwcr wwcs wwct wwcw wwec wwer wwet wwfc wwfe wwfr wwfw wwkc wwkf wwkr wwks wwrc wwre wwrf wwrk wwrr wwrw wwsc wwse wwsf wwsk wwsr wwss wwst wwtc wwtf wwtk wwtr wwtw wwwc wwwe wwwk wwwr wwws wwww

-tree c-tec ccccc ccett ceere ceese cerc- cerce cercs cerec cerer ceres ceret cerfs cerke cerre cerrs cerse cerss certe certs cesce cescr cesse ceste cests cetes cette crece creek creer crees creft creke cresc crese cress crest crete crewe crews crres crwet csere cstcc ctree cttee cwers ecker ecser ectfe eecke eeeee ef-ts efere efetf effer effet effts efter ekers ekker erecs erect erere eresk erest erets erewe erkec erres errew erses erste ersts erte erter ertes esces escrt esect esere esker esref esser esses essew essse estce estee ester estes estet estew estre eteke etest etete etree etrek etres etter ettes etwee eweek ewers ewert ewest ewfte fcsts feces fecks feere feers feese feets ferce feres feret ferr- ferre ferse ferte feser fesse fest- feste fests feter fetes fette fewer fewte frcsc freck freek freer frees freet freke frere frese fress frest frets frett fscks fseek ftest ftrtt k-set kecer kecks keefe keeks keere keest keets kefee kekec kerek keres keret kerfs kerre kerrs kerse kerss keser kesse keste ketek keter kette kewet kfest kreef kreek krees kreke kresk kress krest krete krewe ksrtc kweek kwest kwete recce recet recke recks rect- recte rects reece reecs reefe reefs reeft reeks reere reese reesk reest reewe refer refet reffe refts rekke rere- reree reres reret resee reses reset resew reske resse reste restr rests retee reter retes retew rette retts rewer rewet rsssf rt-rk s-tec scere scert screc scree screw scrwe scter sctrs secke secre secte sects seece seeke seeks seere seers seese seest seete sefer sefes seffe sefte seker sekes sekke serce serec seref serer seres seret serew serfe serff serfs serke serre serse serss sert- serte serts serwe sesce seser seses sesse seste setec setee seter setse setsf sette setts sewee sewer sewet sewre sewte skcws skeck skeer skees skeet skere skerf skers skete skew- skews skewt skrew skrte skwff sssss steck steek steer stees steet steff steke sterc stere sterk sterr sters stert stete stets stews stker stree strek stret strew strrs strwe sweek sweer sweet sweft swere swerf swerk