-er -ey ddd dde ddf ddn ddo ddr ddy de- ded dee def den deo der dey dfd dfe dff dfn dfo dfr dnd dne dnf dnn dno dnr dny dod doe dof don doo dor doy drd dre drn dro drr dry dy- dyd dye dyn dyo dyr dyy ed- edd ede edf edn edo edr edy eed eee eef een eeo eer eey ef- efd efe eff efo efr en- end ene enf enn eno enr eny eo- eod eoe eof eon eoo eor erd ere erf ern ero err ery eyd eye eyn eyo eyr fdd fde fdf fdn fdo fdr fed fee fef fen feo fer fey ffd ffe fff ffn ffo ffr ffy fnd fne fnf fnn fnr foe fof fon foo for foy frd fre frf frn fro frr fry fy- fye fyn fyo ndd nde ndf ndn ndo ndr ndy ne- ned nee nef nen neo ner ney nfd nfe nff nfn nfo nfr nne nnf nnn nno no- nod noe nof non noo nor noy nrd nre nrf nrn nro nrr nry nyd nye nyf nyn nyo nyy odd ode odf odn odo odr oed oee oef oen oeo oer oey of- ofd ofe off ofn ofo ofr on- ond one onf onn ono onr ony oo- ood oof oon ooo oor or- ord ore orf orn oro orr ory oyd oye oyo rdd rde rdf rdn rdo rdr rdy re- red ree ref ren reo rer rey rfd rfe rff rfn rfo rfr rnd rnn rno rnr rny rod roe rof ron roo ror roy rrd rrf rrn rrr ry- ryd rye ryf ryn ryo ryr ryy yde ydn ydo ydy yed yee yef yen yeo yer yey yfd yfe yff yfr ynd yne ynn yny yod yoe yof yon yoo yor yoy yre yrf yrn yro yye yyf yyy