-er -ol c-- ccc cce ccl cco ccr cct ccu ce- cec cee cel ceo cer cet ceu cl- clc cle cll clo clr clt clu co- coc coe col coo cor cot cou crc cre crl cro crr crt cru ctc cte ctl cto ctr ctt ctu cuc cue cul cuo cur cut cuu ec- ecc ece ecl eco ecr ect ecu eec eee eel eeo eer eet elc ele ell elo elr elt elu eo- eoc eoe eol eoo eor eot eou erc ere erl ero err ert eru etc ete etl eto etr ett etu eu- euc eue eul eur eut lcc lce lcl lco lcr lct lcu lec lee lel leo ler let leu llc lle lll llo llr llt llu loc loe lol loo lor lot lou lrc lro lrr lrt lru ltc lte ltl lto ltr ltt ltu luc lue lul luo lur lut luu oc- occ ocl oco ocr oct ocu oec oee oel oeo oer oet olc ole oll olo olt olu oo- ooc ool ooo oor oot or- orc ore orl oro orr ort oru ot- otc ote otl oto otr ott otu ou- ouc oue oul ouo our out rcc rce rcl rco rcr rct rcu re- rec ree rel reo rer ret reu rlc rle rll rlo rlr rlt rlu roc roe rol roo ror rot rou rrc rrl rrr rrt rru rtc rte rtl rto rtr rtt rtu ruc rue ruo rur rut ruu tcc tce tcl tco tcr tct tcu te- tec tee tel teo ter tet teu tlc tle tll tlo tlr tlt tlu to- toc toe tol too tor tot tou trc tre trl tro trr trt tru ttc tte ttl tto ttr ttt ttu tuc tue tul tuo tur tut tuu ucc uce ucl uco ucr uct ucu uec uee uel uer uet ulc ule ull ulo ulr ult ulu uoc uoe uol uoo uor uot ur- urc ure url uro urr urt uru utc ute utl uto utr utt utu uuc uue uur uut uuu

cccc cccl cccu ccee ccel cclc ccoc ccrc ccre ccrl ccrt cctc cctl cctt ccuc ccut cec- cece ceco cect ceec ceel cel- celc cele cell celo celt ceol ceor ceou cer- cerc cere cerl cero cert cet- cete ceto clec clee cleo cler clet cleu cloe cloo clor clot clou clro cltc clue clut coce coco coct cocu coel col- cole coll colo colt colu cool coot cor- corc core corl coro corr cort cotc cote coto cott cotu coue coul cour cout crcc crce crcr cre- crec cree creo cret creu croc croe crol croo cror crot crrt crtc crtl crue crut ctec ctle ctol ctor ctot ctrc ctrl cucc cuce cuer culc cule cull culo cult cure curl curo curr curt cut- cutc cute cuto cutt e-cl eccc ecce eccl ecco ecct eclt eco- ecol ecot ecou ecrc ecrl ecrr ecru ect- ectc ecto eeee eele eeoc eerc eero eetc eete eetu elce elco elec elee eleo eler elet elle ello ellu elro elte elto elue elul eole eolo eore eorl eotc eoto ercc erce erec erel erer eret erle erll eroc eroe erol eroo errc erre erro ertl ertu eruc erur etcc etco etec etee etel eter etoe etre etro ette etto ettu euer eule eur- eurc eure euro eurt lccc lcce lcer lcor lcrl lctl lcto le-u lece leco lect leel leer leet lele lell lelo lelu leoc leor leou lerc lere lero lert lete leto lett leuc leur llcc llet lleu lllc llll lloc lloo locc loce loco locu loeu lole loll lolo looc looe lool loor loot lore loro lote lotl loto lotr lott loue loul lour lout louu lroc lrrc lrrr ltcc ltee lttc lttr ltuc luce luer lule lull lulu lure lurt lute o-eo occc occt oce ocee ocet oclc ocre ocrl ocro ocrr oct- octe octo ocul ocur oec- oecc oeec oele oere olcc ole- oleo oler olet olle ollo olor olot oltu olur oocr ooer oolo oooo oore oort orce orco ore- orec orel oreo orer orle orlo orlu oro- oroe oror orot orro ortc orte orto otcl otee oter oto- otoe otoo otor otre otro otte otto ottu otur oucc ouer oule oulu our- oure ouro ourt out- oute outo ouu- rccc rcet rcle rctc recc rece recr rect recu reel reet rele rell relo relt reol reot reou rere rero rert reru rete reto retr rett reue reul reut reuu rlee rleu rocc roce roco roel roer roet role roll rolo rolt rool roor root rorc rore roro rort roru rotc rote rotl roto rotr rott roue roul rout rrle rrrr rtcc rtce rtee rtle rtlt ruce ruct ruel ruer ruet rule rull rulo rurc rure ruro ruru rute rutl ruto rutt rutu tccc tccu tctc tcul tecl teco tecr tect teec teel teer teet tel- telc tele tell telo telt telu teor ter- terc tere tero terr teru tete teto tetr tett tetu teut tlco toce toco toee toer toet tol- tole toll tolo tolt tolu tool toor toot torc tore toro torr tort toru totc tote toto totr tott toul tour tout trcc trcl tre- trec tree treo tret treu troc troe troo trot trou trtc trte trtr truc true trut truu tteo tter ttoe tttt ttul tucc tuco tuel tuer tuet tule tull tulo tulu tuor turc ture turo turr turt turu tute tutl tuto tutt tutu tuuo ucel ucrc ucut uele uell ulcc ulco ulee uleo ulle ullo ullr ulo- uloc ulto ultt ulul uocc uolc uor- uore ure- uret urle uro- urol uroo urre urte urur urut utec utel uter utor utto uttu uulu uuoc uuuu

-tree c-cor c-tec ccccc ccell ccett ccrcl ccrel cctrl ceco- ceele ceelo ceere celco celer cell- celle cello celo- celte ceoce ceoor ceorl cerc- cerce cerco cerec cerer ceret cero- ceroc cerou cerre cerro certe ceto- cette cleco cleer cleet clerc clere clete cleto clett cloor cloot clore clort clote cloue clour clout clue-