-er -ey ddd dde ddf ddo ddr ddt ddu ddy de- ded dee def deo der det deu dey dfd dfe dff dfo dfr dft dfu dod doe dof doo dor dot dou doy drd dre dro drr drt dru dry dtd dte dtf dto dtr dtt dtu dty dud due duf duo dur dut duy dy- dyd dye dyo dyr dyu dyy ed- edd ede edf edo edr edt edu edy eed eee eef eeo eer eet eey ef- efd efe eff efo efr eft eo- eod eoe eof eoo eor eot eou erd ere erf ero err ert eru ery etd ete etf eto etr ett etu ety eu- eud eue euf eur eut eyd eye eyo eyr eyt fdd fde fdf fdo fdr fdt fdu fed fee fef feo fer fet feu fey ffd ffe fff ffo ffr fft ffu ffy foe fof foo for fot fou foy frd fre frf fro frr frt fru fry ftd fte ftf fto ftr ftt ftu fty fud fue fuf fuo fur fut fuu fy- fye fyo odd ode odf odo odr odt odu oed oee oef oeo oer oet oey of- ofd ofe off ofo ofr oft ofu oo- ood oof ooo oor oot or- ord ore orf oro orr ort oru ory ot- otd ote otf oto otr ott otu ou- oud oue ouf ouo our out oyd oye oyo rdd rde rdf rdo rdr rdt rdu rdy re- red ree ref reo rer ret reu rey rfd rfe rff rfo rfr rft rfu rod roe rof roo ror rot rou roy rrd rrf rrr rrt rru rtd rte rtf rto rtr rtt rtu rty rud rue ruf ruo rur rut ruu ruy ry- ryd rye ryf ryo ryr ryu ryy tdd tde tdf tdo tdr tdt tdu tdy te- ted tee tef teo ter tet teu tey tfd tfe tff tfo tfr tft tfu to- tod toe tof too tor tot tou toy trd tre trf tro trr trt tru try ttd tte ttf tto ttr ttt ttu tty tud tue tuf tuo tur tut tuu tuy tyd tye tyf tyo tyr tyt udd ude udf udo udr udt udu ued uee uef uer uet uey ufd ufe uff ufo ufr uft ufu uod uoe uoo uor uot ur- urd ure urf uro urr urt uru ury utd ute utf uto utr utt utu uty uue uur uut uuu uyo uyu yde ydo ydt ydy yed yee yef yeo yer yet yey yfd yfe yff yfr yft yfu yod yoe yof yoo yor yot you yoy yre yrf yro yrt yru ytd yte ytf yto ytr ytt ytu yud yue yuo yur yut yuu yuy yye yyf yyt yyu yyy