-er -ey ddd dde ddn ddp ddr ddy de- ded dee den dep der dey dnd dne dnn dnp dnr dny dpd dpe dpn dpp dpr drd dre drn drp drr dry dy- dyd dye dyn dyp dyr dyy ed- edd ede edn edp edr edy eed eee een eep eer eey en- end ene enn enp enr eny ep- epd epe epn epp epr erd ere ern erp err ery eyd eye eyn eyp eyr ndd nde ndn ndp ndr ndy ne- ned nee nen nep ner ney nne nnn nnp npd npe npn npp npr nrd nre nrn nrp nrr nry nyd nye nyn nyp nyy p-p pdd pde pdn pdp pdr ped pee pen pep per pey pn- pnd pne pnn pnp pnr pny ppd ppe ppn ppp ppr prd pre prn prp prr pry py- pyd pye pyn pyr rdd rde rdn rdp rdr rdy re- red ree ren rep rer rey rnd rnn rnp rnr rny rpd rpe rpn rpp rpr rrd rrn rrp rrr ry- ryd rye ryn ryr ryy yde ydn ydy yed yee yen yep yer yey ynd yne ynn ynp yny ypd yre yrn yrp yye yyy