-er -ol ddd dde ddf ddi ddl ddo ddr dds de- ded dee def dei del deo der des dev dfd dfe dff dfi dfl dfo dfr dfs dfv di- did die dif dii dil dio dir dis div dl- dld dle dlf dli dll dlo dlr dls dlv dod doe dof doi dol doo dor dos dov drd dre dri drl dro drr drs drv dsd dse dsf dsi dsl dso dsr dss dsv dvd dve dvi dvl dvr dvs ed- edd ede edf edi edl edo edr eds eed eee eef eel eeo eer ees eev ef- efd efe eff efi efl efo efr efs eid eie eif eii eil eio eir eis eiv eld ele elf eli ell elo elr els elv eo- eod eoe eof eoi eol eoo eor eos erd ere erf eri erl ero err ers erv es- esd ese esf esi esl eso esr ess esv evd eve evf evi evl evo evr evs evv fdd fde fdf fdi fdl fdo fdr fds fed fee fef fei fel feo fer fes fev ffd ffe fff ffi ffl ffo ffr ffs ffv fid fie fif fii fil fir fis fld fle flf fli fll flo flr fls foe fof foi fol foo for fos frd fre frf fri frl fro frr frs fsd fse fsf fsi fsl fso fsr fss fsv fvd i-d i-f i-v idd ide idf idi idl ido idr ids idv ie- ied iee ief iei iel ier ies iev ifd ife iff ifi ifl ifo ifr ifs iid iie iif iii iil iio iir iis il- ild ile ilf ili ill ilo ilr ils ilv io- iod ioe iof ioi iol ioo ior ios iov ir- ird ire irf iri irl iro irr irs irv is- isd ise isf isi isl iso isr iss isv ivd ive ivf ivi ivl ivo ivr ivs ivv ldd lde ldf ldi ldl ldo ldr lds ldv led lee lef lei lel leo ler les lev lfd lfe lff lfi lfl lfo lfr lfs lid lie lif lii lil lio lir lis liv lld lle llf lli lll llo llr lls llv lod loe lof loi lol loo lor los lov lrd lrf lri lro lrr lrs lrv lsd lse lsf lsi lsl lso lsr lss lsv lvd lve lvf lvi lvl lvr lvs lvv o-i odd ode odf odi odl odo odr ods odv oed oee oef oei oel oeo oer oes of- ofd ofe off ofi ofl ofo ofr ofs ofv oid oie oif oii oil oio oir ois oiv old ole olf oli oll olo ols oo- ood oof ooi ool ooo oor oos oov or- ord ore orf ori orl oro orr ors orv os- osd ose osf osi osl oso osr oss osv ov- ovd ove ovf ovi ovl ovo ovs ovv rdd rde rdf rdi rdl rdo rdr rds rdv re- red ree ref rei rel reo rer res rev rfd rfe rff rfi rfl rfo rfr rfs rfv rid rie rif rii ril rio rir ris riv rld rle rlf rli rll rlo rlr rls rod roe rof roi rol roo ror ros rov rrd rrf rri rrl rrr rrs rsd rse rsf rsi rsl rso rsr rss rsv rvd rve rvf rvi rvl rvo rvr rvs rvv sdd sde sdf sdi sdl sdo sdr sds sdv se- sed see sef sei sel seo ser ses sev sfd sfe sff sfi sfl sfo sfr sfs sfv sid sie sif sii sil sio sir sis siv sld sle slf sli sll slo slr sls slv sod soe sof soi sol soo sor sos sov sr- srd sre srf sri srl sro srr srs srv ss- ssd sse ssf ssi ssl sso ssr sss ssv svd sve svf svi svl svo svr svs svv v-e vdd vde vdf vdi vdl vdo vdr vds vdv ved vee vef vei vel veo ver ves vfd vff vfi vfl vfr vfs vfv vi- vid vie vif vii vil vio vir vis viv vl- vld vle vlf vll vlo vls vlv vod voe vof voi vol voo vor vos vov vrd vre vrf vri vrr vrs vsd vse vsf vsi vsl vso vsr vss vsv vvi vvo vvr vvs vvv