-er -ey ddd dde ddo ddp ddr ddy de- ded dee deo dep der dey dod doe doo dop dor doy dpd dpe dpo dpp dpr drd dre dro drp drr dry dy- dyd dye dyo dyp dyr dyy ed- edd ede edo edp edr edy eed eee eeo eep eer eey eo- eod eoe eoo eop eor ep- epd epe epo epp epr erd ere ero erp err ery eyd eye eyo eyp eyr odd ode odo odp odr oed oee oeo oep oer oey oo- ood ooo oop oor op- opd ope opo opp opr opy or- ord ore oro orp orr ory oyd oye oyo p-p pdd pde pdo pdp pdr ped pee peo pep per pey pod poe poo pop por poy ppd ppe ppo ppp ppr prd pre pro prp prr pry py- pyd pye pyo pyr rdd rde rdo rdp rdr rdy re- red ree reo rep rer rey rod roe roo rop ror roy rpd rpe rpo rpp rpr rrd rrp rrr ry- ryd rye ryo ryr ryy yde ydo ydy yed yee yeo yep yer yey yod yoe yoo yop yor yoy ypd ypo yre yro yrp yye yyy