cccc ccee ccoc ccrc ccre ccrt cctc cctt cec- cece ceco cect ceec ceor cer- cerc cere cero cert cery cet- cete ceto cexe ceyx coce coco coct coex coot cor- corc core coro corr cort cory cotc cote coto cott coty coxe coxy coyo coyr coyt crcc crce crcr cre- crec cree creo cret crex croc croe croo cror crot croy crrt crtc cry- cryo ctec ctor ctot ctrc cxro cxxx cyc- cycc cyre cyrt cyt- cyte cyto cyy- cyyc eccc ecce ecco ecct eco- ecot ecrc ecrr ect- ectc ecto eeee eeoc eerc eero eery eetc eete eext eore eotc eoto er-x ercc erce erec erer eret eroc eroe eroo errc erre erro eryc erye eryx etcc etco etec etee eter etoe etox etoy etre etro ette etto etty exco exec exer exo- exor exrx exte extr exxy eyec eyer eyet eyey eyot eyre eyry eyte eyyr o-eo occc occt oce ocee ocet ocre ocro ocrr oct- octe octo octy oec- oecc oeec oere oeye oeyo oocr ooer oooo oore oort oory ooty orce orco ore- orec oreo orer orex orey oro- oroe oror orot oroy orro orry ortc orte orto oryx otee oter oto- otoe otoo otor otoy otre otro otry otte otto otyr oxer oxo- oxox oxxo oxy- oyce oyee oyer oyre rccc rcet rctc rcyc recc rece recr rect recy reet reot rere rero rert rery rete reto retr rett rety rexx reye rocc roce roco roer roet roey roor root roox rorc rore roro rort rory rotc rote roto rotr rott roty roxo roxy roye royt rrrr rtcc rtce rtee rtex ryet ryot rytt ryyt tccc tctc teco tecr tect teec teer teet teor ter- terc tere tero terr tery tete teto tetr tett tetx text teye teyr to-y toce toco toee toer toet toey toor toot torc tore toro torr tort torx tory totc tote toto totr tott toty tox- toxo toxt toyo toyt trcc tre- trec tree treo tret trex trey troc troe troo trot trox troy trtc trte trtr try- trye tryo tteo tter ttoe ttoy tttt txtr tyce tyco tyee tyer tyet tyr- tyre tyro tyrr tyte tyto tytt tyty tyxt xeer xer- xero xert xexe xoco xoro xote xoxo xoyo xtro xtry xxxo xxxx xxxy xyr- yccc ycee yctc yeer yeet yeot yeox yere yero yerr yert yery yete yeto yett yext yeye yeyo yeyr yoot yore yoro yort yory yote yott yoxe yoye yoyo ytre yyyy