-er -ol ddd dde ddi ddl ddo ddr dds de- ded dee dei del deo der des dev di- did die dii dil dio dir dis div dl- dld dle dli dll dlo dlr dls dlv dod doe doi dol doo dor dos dov drd dre dri drl dro drr drs drv dsd dse dsi dsl dso dsr dss dsv dvd dve dvi dvl dvr dvs ed- edd ede edi edl edo edr eds eed eee eel eeo eer ees eev eid eie eii eil eio eir eis eiv eld ele eli ell elo elr els elv eo- eod eoe eoi eol eoo eor eos erd ere eri erl ero err ers erv es- esd ese esi esl eso esr ess esv evd eve evi evl evo evr evs evv i-d i-v idd ide idi idl ido idr ids idv ie- ied iee iei iel ier ies iev iid iie iii iil iio iir iis il- ild ile ili ill ilo ilr ils ilv io- iod ioe ioi iol ioo ior ios iov ir- ird ire iri irl iro irr irs irv is- isd ise isi isl iso isr iss isv ivd ive ivi ivl ivo ivr ivs ivv ldd lde ldi ldl ldo ldr lds ldv led lee lei lel leo ler les lev lid lie lii lil lio lir lis liv lld lle lli lll llo llr lls llv lod loe loi lol loo lor los lov lrd lri lro lrr lrs lrv lsd lse lsi lsl lso lsr lss lsv lvd lve lvi lvl lvr lvs lvv o-i odd ode odi odl odo odr ods odv oed oee oei oel oeo oer oes oid oie oii oil oio oir ois oiv old ole oli oll olo ols oo- ood ooi ool ooo oor oos oov or- ord ore ori orl oro orr ors orv os- osd ose osi osl oso osr oss osv ov- ovd ove ovi ovl ovo ovs ovv rdd rde rdi rdl rdo rdr rds rdv re- red ree rei rel reo rer res rev rid rie rii ril rio rir ris riv rld rle rli rll rlo rlr rls rod roe roi rol roo ror ros rov rrd rri rrl rrr rrs rsd rse rsi rsl rso rsr rss rsv rvd rve rvi rvl rvo rvr rvs rvv sdd sde sdi sdl sdo sdr sds sdv se- sed see sei sel seo ser ses sev sid sie sii sil sio sir sis siv sld sle sli sll slo slr sls slv sod soe soi sol soo sor sos sov sr- srd sre sri srl sro srr srs srv ss- ssd sse ssi ssl sso ssr sss ssv svd sve svi svl svo svr svs svv v-e vdd vde vdi vdl vdo vdr vds vdv ved vee vei vel veo ver ves vi- vid vie vii vil vio vir vis viv vl- vld vle vll vlo vls vlv vod voe voi vol voo vor vos vov vrd vre vri vrr vrs vsd vse vsi vsl vso vsr vss vsv vvi vvo vvr vvs vvv