cccc cccf ccee ccfc ccff ccgc ccgt cche ccoc cctc cctt cec- cece ceco cect ceec cef- cefc cege cego cet- cete ceto cfcf cfco cfgo cftc cfte cfth cgcc cgcg cgfc chce chch chec chee chef cheh chet chfc chge choc choh choo chto chtt coce coch coco coct cofc cofe coff coft cogh cogo coho coof cooh coot cotc cote coth coto cott ctcf ctec ctfc ctfo ctge ctgf ctot eccc ecce ecco ecct ecef ecfc eche echo echt eco- ecog ecot ect- ectc ectf ecth ecto eeee eefe eeoc eetc eete eeth ef-g efco efeo efet efgh eft- egcc egcg egec egee egfh egge eggh eggo eghe eghh ego- egot egte ehcc eheh ehte eotc eoto etcc etch etco etec etee etfc etfe eth- ethe etho etoe etoh ette etto fccf fcch fcot fcto fece fech fect feet fefc fefe feff fefo fege fegg feof feoh fete feth fett ffcc ffee ffff fftf foce foch foco fofo foge fogg fogh fogo foof foot fote foth foto fott ft-c ftfc gc-c gccc gccf gcet gcfc gctc gece geet gefe geft gege gegg gego geht geo- geof geog gete getg geth geto gett gfcf ggfg gggg gghg ghee gheg goce goch goef gofe goff gogh gogo goof goog goot gote goth goto gott gtco gtfc gtfo gtoe hccc hcch hcfc hcgh hech hect heef heeg heet hefe heft hege hegg hegh hego hehe heho hete heth heto hett hfce hgfc hggc hgtc hhgg hhhh hhof hoce hoch hofe hoff hoge hogg hogh hogo hohe hoho hooe hoof hoot hote hoth hoto hott htcc htet htfc htoh o-eo occc occt oce ocee ocef ocet oche ocht oct- octe octo oec- oecc oeec off- offc offe offh offo ofgo ogee ogge oght ogog ohcc ohee ohho ohoh ohte ohto ooff ooho oooh oooo otee otfc othe otho oto- otoe otof otog otoh otoo otte otto tccc tcfc tcfg tch- tche tchh tcho tctc tech teco tect teec teef teet tefc teff teft tegg tegh tego tegt teho teoh tete teth teto tett tfec tfot tftc tgcc tgtc thch the- thec thee thef theo thet thoe thof thog thoo thot toce toch toco toee toeh toet toff tofo toft toge togh togo togt toho toof tooh toot totc tote toth toto tott tteo ttfc ttff ttoe tttt