-er -ey ddd dde ddi ddo ddp ddr ddy de- ded dee dei deo dep der dey di- did die dii dio dip dir diy dod doe doi doo dop dor doy dpd dpe dpi dpo dpp dpr drd dre dri dro drp drr dry dy- dyd dye dyo dyp dyr dyy ed- edd ede edi edo edp edr edy eed eee eeo eep eer eey eid eie eii eio eip eir eo- eod eoe eoi eoo eop eor ep- epd epe epi epo epp epr erd ere eri ero erp err ery eyd eye eyo eyp eyr i-d idd ide idi ido idp idr idy ie- ied iee iei iep ier iey iid iie iii iio iip iir io- iod ioe ioi ioo iop ior ipd ipe ipi ipo ipp ipr ipy ir- ird ire iri iro irp irr iry iye iyo iyr iyy o-i odd ode odi odo odp odr oed oee oei oeo oep oer oey oid oie oii oio oip oir oo- ood ooi ooo oop oor op- opd ope opi opo opp opr opy or- ord ore ori oro orp orr ory oyd oye oyi oyo p-p pdd pde pdi pdo pdp pdr ped pee pei peo pep per pey pid pie pii pio pip pir pod poe poi poo pop por poy ppd ppe ppi ppo ppp ppr prd pre pri pro prp prr pry py- pyd pye pyo pyr rdd rde rdi rdo rdp rdr rdy re- red ree rei reo rep rer rey rid rie rii rio rip rir riy rod roe roi roo rop ror roy rpd rpe rpi rpo rpp rpr rrd rri rrp rrr ry- ryd rye ryo ryr ryy yde ydo ydy yed yee yei yeo yep yer yey yid yie yii yio yip yir yod yoe yoi yoo yop yor yoy ypd ypo yre yro yrp yye yyy