-er -ol ddd dde ddf ddg ddi ddl ddo ddp ddr dds de- ded dee def deg dei del deo dep der des dfd dfe dff dfg dfi dfl dfo dfp dfr dfs dgd dge dgf dgg dgi dgl dgp dgr dgs di- did die dif dig dii dil dio dip dir dis dl- dld dle dlf dlg dli dll dlo dlp dlr dls dod doe dof dog doi dol doo dop dor dos dpd dpe dpf dpg dpi dpl dpo dpp dpr dps drd dre drg dri drl dro drp drr drs dsd dse dsf dsg dsi dsl dso dsp dsr dss ed- edd ede edf edg edi edl edo edp edr eds eed eee eef eeg eel eeo eep eer ees ef- efd efe eff efg efi efl efo efp efr efs egd ege egf egg egi egl ego egp egr egs eid eie eif eig eii eil eio eip eir eis eld ele elf elg eli ell elo elp elr els eo- eod eoe eof eog eoi eol eoo eop eor eos ep- epd epe epf epg epi epl epo epp epr eps erd ere erf erg eri erl ero erp err ers es- esd ese esf esg esi esl eso esp esr ess fdd fde fdf fdg fdi fdl fdo fdp fdr fds fed fee fef feg fei fel feo fep fer fes ffd ffe fff ffg ffi ffl ffo ffp ffr ffs fgd fge fgf fgg fgi fgl fgp fgr fgs fid fie fif fig fii fil fip fir fis fld fle flf flg fli fll flo flp flr fls foe fof fog foi fol foo fop for fos fpd fpe fpg fpi fpl fpo fpp fpr fps frd fre frf frg fri frl fro frp frr frs fsd fse fsf fsg fsi fsl fso fsp fsr fss g-d g-p gdd gde gdf gdi gdl gdo gdp gdr gds ge- ged gee gef geg gei gel geo gep ger ges gfd gfe gff gfi gfl gfo gfp gfr gfs ggd ggg ggi ggo ggp ggr ggs gid gie gif gig gii gil gio gip gir gis gld gle glf glg gli gll glo glp glr gls god goe gof gog goi gol goo gop gor gos gpd gpe gpf gpg gpi gpl gpo gpp gpr gps grd gre grf grg gri grl gro grp grr grs gsd gse gsf gsg gsi gsl gso gsp gsr gss i-d i-f idd ide idf idg idi idl ido idp idr ids ie- ied iee ief ieg iei iel iep ier ies ifd ife iff ifg ifi ifl ifo ifp ifr ifs igd ige igf igg igi igl igo igp igr igs iid iie iif iii iil iio iip iir iis il- ild ile ilf ilg ili ill ilo ilp ilr ils io- iod ioe iof iog ioi iol ioo iop ior ios ipd ipe ipf ipg ipi ipl ipo ipp ipr ips ir- ird ire irf irg iri irl iro irp irr irs is- isd ise isf isg isi isl iso isp isr iss l-p ldd lde ldf ldg ldi ldl ldo ldp ldr lds led lee lef leg lei lel leo lep ler les lfd lfe lff lfg lfi lfl lfo lfp lfr lfs lgd lge lgf lgg lgi lgl lgo lgp lgr lgs lid lie lif lig lii lil lio lip lir lis lld lle llf llg lli lll llo llp llr lls lod loe lof log loi lol loo lop lor los lpd lpe lpf lpg lpi lpl lpo lpp lpr lps lrd lrf lrg lri lro lrp lrr lrs lsd lse lsf lsg lsi lsl lso lsp lsr lss o-i odd ode odf odg odi odl odo odp odr ods oed oee oef oeg oei oel oeo oep oer oes of- ofd ofe off ofg ofi ofl ofo ofp ofr ofs ogd oge ogf ogg ogi ogl ogo ogp ogs oid oie oif oii oil oio oip oir ois old ole olf olg oli oll olo olp ols oo- ood oof oog ooi ool ooo oop oor oos op- opd ope opf opg opi opl opo opp opr ops or- ord ore orf org ori orl oro orp orr ors os- osd ose osf osg osi osl oso osp osr oss p-p pdd pde pdf pdg pdi pdl pdo pdp pdr pds ped pee pef peg pei pel peo pep per pes pfd pfe pff pfg pfi pfl pfo pfp pfr pfs pgd pge pgf pgg pgi pgl pgo pgp pgr pgs pid pie pif pig pii pil pio pip pir pis pld ple plf plg pli pll plo plp plr pls pod poe pof pog poi pol poo pop por pos ppd ppe ppf ppg ppi ppl ppo ppp ppr pps prd pre prf prg pri prl pro prp prr prs ps- psd pse psf psg psi psl pso psp psr pss rdd rde rdf rdg rdi rdl rdo rdp rdr rds re- red ree ref reg rei rel reo rep rer res rfd rfe rff rfg rfi rfl rfo rfp rfr rfs rgd rge rgf rgg rgi rgo rgp rgr rgs rid rie rif rig rii ril rio rip rir ris rld rle rlf rlg rli rll rlo rlp rlr rls rod roe rof rog roi rol roo rop ror ros rpd rpe rpf rpg rpi rpl rpo rpp rpr rps rrd rrf rrg rri rrl rrp rrr rrs rsd rse rsf rsg rsi rsl rso rsp rsr rss sdd sde sdf sdg sdi sdl sdo sdp sdr sds se- sed see sef seg sei sel seo sep ser ses sfd sfe sff sfg sfi sfl sfo sfp sfr sfs sgd sge sgf sgg sgi sgl sgo sgp sgr sgs sid sie sif sig sii sil sio sip sir sis sld sle slf slg sli sll slo slp slr sls sod soe sof sog soi sol soo sop sor sos spd spe spf spg spi spl spo spp spr sps sr- srd sre srf srg sri srl sro srp srr srs ss-