-er ddd dde ddo ddr dds ddt ddw de- ded dee deo der des det dev dew dod doe doo dor dos dot dov dow drd dre dro drr drs drt drv drw dsd dse dso dsr dss dst dsv dsw dtd dte dto dtr dts dtt dtv dtw dvd dve dvr dvs dvt dvw dwe dwo dwr dws dwt dwv dww ed- edd ede edo edr eds edt edw eed eee eeo eer ees eet eev eew eo- eod eoe eoo eor eos eot eow erd ere ero err ers ert erv erw es- esd ese eso esr ess est esv esw etd ete eto etr ets ett etv etw evd eve evo evr evs evt evv evw ewd ewe ewo ewr ews ewt eww odd ode odo odr ods odt odv oed oee oeo oer oes oet oo- ood ooo oor oos oot oov oow or- ord ore oro orr ors ort orv os- osd ose oso osr oss ost osv osw ot- otd ote oto otr ots ott otv otw ov- ovd ove ovo ovs ovv owd owe owo ows owt oww rdd rde rdo rdr rds rdt rdv re- red ree reo rer res ret rev rew rod roe roo ror ros rot rov row rrd rrr rrs rrt rsd rse rso rsr rss rst rsv rsw rtd rte rto rtr rts rtt rtv rtw rvd rve rvo rvr rvs rvt rvv rvw rwd rwe rwr rws sdd sde sdo sdr sds sdt sdv sdw se- sed see seo ser ses set sev sew sod soe soo sor sos sot sov sow sr- srd sre sro srr srs srt srv srw ss- ssd sse sso ssr sss sst ssv ssw std ste sto str sts stt stv stw svd sve svo svr svs svt svv swd swe swo swr sws swt swv tdd tde tdo tdr tds tdt tdv tdw te- ted tee teo ter tes tet tev tew to- tod toe too tor tos tot tov tow trd tre tro trr trs trt trv trw tsd tse tso tsr tss tst tsv tsw ttd tte tto ttr tts ttt ttv ttw tvd tve tvo tvr tvs tvt tvw twd twe two twr tws twt tww v-e vdd vde vdo vdr vds vdt vdv vdw ved vee veo ver ves vet vew vod voe voo vor vos vot vov vow vrd vre vrr vrs vrt vsd vse vso vsr vss vst vsv vsw vte vto vtr vts vtt vtv vvo vvr vvs vvt vvv vwd vwo vws wdr wds wdt wdv wed wee weo wer wes wet wew wod woe woo wor wos wot wow wr- wrd wre wro wrr wrs wrt wrw wsd wse wso wsr wss wst wsv wsw wtd wto wtr wts wtt wtv wtw wvs wvt wvw wwd wwe wwo wwt wwv www