-er -ey eee eef eeo eer eet eey ef- efe eff efo efr eft eo- eoe eof eoo eor eot ere erf ero err ert ery ete etf eto etr ett ety eye eyo eyr eyt fee fef feo fer fet fey ffe fff ffo ffr fft ffy foe fof foo for fot foy fre frf fro frr frt fry fte ftf fto ftr ftt fty fy- fye fyo oee oef oeo oer oet oey of- ofe off ofo ofr oft oo- oof ooo oor oot or- ore orf oro orr ort ory ot- ote otf oto otr ott oye oyo re- ree ref reo rer ret rey rfe rff rfo rfr rft roe rof roo ror rot roy rrf rrr rrt rte rtf rto rtr rtt rty ry- rye ryf ryo ryr ryy te- tee tef teo ter tet tey tfe tff tfo tfr tft to- toe tof too tor tot toy tre trf tro trr trt try tte ttf tto ttr ttt tty tye tyf tyo tyr tyt yee yef yeo yer yet yey yfe yff yfr yft yoe yof yoo yor yot yoy yre yrf yro yrt yte ytf yto ytr ytt yye yyf yyt yyy