-er -ey ddd dde ddo ddr dds ddy de- ded dee deo der des dev dey dod doe doo dor dos dov doy drd dre dro drr drs drv dry dsd dse dso dsr dss dsv dsy dvd dve dvr dvs dy- dyd dye dyo dyr dys dyy ed- edd ede edo edr eds edy eed eee eeo eer ees eev eey eo- eod eoe eoo eor eos erd ere ero err ers erv ery es- esd ese eso esr ess esv esy evd eve evo evr evs evv evy eyd eye eyo eyr eys odd ode odo odr ods odv oed oee oeo oer oes oey oo- ood ooo oor oos oov or- ord ore oro orr ors orv ory os- osd ose oso osr oss osv ov- ovd ove ovo ovs ovv oyd oye oyo oys rdd rde rdo rdr rds rdv rdy re- red ree reo rer res rev rey rod roe roo ror ros rov roy rrd rrr rrs rsd rse rso rsr rss rsv rvd rve rvo rvr rvs rvv rvy ry- ryd rye ryo ryr rys ryy sdd sde sdo sdr sds sdv sdy se- sed see seo ser ses sev sey sod soe soo sor sos sov soy sr- srd sre sro srr srs srv sry ss- ssd sse sso ssr sss ssv svd sve svo svr svs svv svy sy- syd sye syr sys v-e vdd vde vdo vdr vds vdv ved vee veo ver ves vey vod voe voo vor vos vov voy vrd vre vrr vrs vry vsd vse vso vsr vss vsv vvo vvr vvs vvv vyd vye yde ydo yds ydy yed yee yeo yer yes yev yey yod yoe yoo yor yos yoy yre yro yrs yse yso ysr yss ysy yve yvo yvr yvy yye yys yyy