-er -ol ddd dde ddg ddi ddl ddo ddp ddr dds de- ded dee deg dei del deo dep der des dgd dge dgg dgi dgl dgp dgr dgs di- did die dig dii dil dio dip dir dis dl- dld dle dlg dli dll dlo dlp dlr dls dod doe dog doi dol doo dop dor dos dpd dpe dpg dpi dpl dpo dpp dpr dps drd dre drg dri drl dro drp drr drs dsd dse dsg dsi dsl dso dsp dsr dss ed- edd ede edg edi edl edo edp edr eds eed eee eeg eel eeo eep eer ees egd ege egg egi egl ego egp egr egs eid eie eig eii eil eio eip eir eis eld ele elg eli ell elo elp elr els eo- eod eoe eog eoi eol eoo eop eor eos ep- epd epe epg epi epl epo epp epr eps erd ere erg eri erl ero erp err ers es- esd ese esg esi esl eso esp esr ess g-d g-p gdd gde gdi gdl gdo gdp gdr gds ge- ged gee geg gei gel geo gep ger ges ggd ggg ggi ggo ggp ggr ggs gid gie gig gii gil gio gip gir gis gld gle glg gli gll glo glp glr gls god goe gog goi gol goo gop gor gos gpd gpe gpg gpi gpl gpo gpp gpr gps grd gre grg gri grl gro grp grr grs gsd gse gsg gsi gsl gso gsp gsr gss i-d idd ide idg idi idl ido idp idr ids ie- ied iee ieg iei iel iep ier ies igd ige igg igi igl igo igp igr igs iid iie iii iil iio iip iir iis il- ild ile ilg ili ill ilo ilp ilr ils io- iod ioe iog ioi iol ioo iop ior ios ipd ipe ipg ipi ipl ipo ipp ipr ips ir- ird ire irg iri irl iro irp irr irs is- isd ise isg isi isl iso isp isr iss l-p ldd lde ldg ldi ldl ldo ldp ldr lds led lee leg lei lel leo lep ler les lgd lge lgg lgi lgl lgo lgp lgr lgs lid lie lig lii lil lio lip lir lis lld lle llg lli lll llo llp llr lls lod loe log loi lol loo lop lor los lpd lpe lpg lpi lpl lpo lpp lpr lps lrd lrg lri lro lrp lrr lrs lsd lse lsg lsi lsl lso lsp lsr lss o-i odd ode odg odi odl odo odp odr ods oed oee oeg oei oel oeo oep oer oes ogd oge ogg ogi ogl ogo ogp ogs oid oie oii oil oio oip oir ois old ole olg oli oll olo olp ols oo- ood oog ooi ool ooo oop oor oos op- opd ope opg opi opl opo opp opr ops or- ord ore org ori orl oro orp orr ors os- osd ose osg osi osl oso osp osr oss p-p pdd pde pdg pdi pdl pdo pdp pdr pds ped pee peg pei pel peo pep per pes pgd pge pgg pgi pgl pgo pgp pgr pgs pid pie pig pii pil pio pip pir pis pld ple plg pli pll plo plp plr pls pod poe pog poi pol poo pop por pos ppd ppe ppg ppi ppl ppo ppp ppr pps prd pre prg pri prl pro prp prr prs ps- psd pse psg psi psl pso psp psr pss rdd rde rdg rdi rdl rdo rdp rdr rds re- red ree reg rei rel reo rep rer res rgd rge rgg rgi rgo rgp rgr rgs rid rie rig rii ril rio rip rir ris rld rle rlg rli rll rlo rlp rlr rls rod roe rog roi rol roo rop ror ros rpd rpe rpg rpi rpl rpo rpp rpr rps rrd rrg rri rrl rrp rrr rrs rsd rse rsg rsi rsl rso rsp rsr rss sdd sde sdg sdi sdl sdo sdp sdr sds se- sed see seg sei sel seo sep ser ses sgd sge sgg sgi sgl sgo sgp sgr sgs sid sie sig sii sil sio sip sir sis sld sle slg sli sll slo slp slr sls sod soe sog soi sol soo sop sor sos spd spe spg spi spl spo spp spr sps sr- srd sre srg sri srl sro srp srr srs ss- ssd sse ssg ssi ssl sso ssp ssr sss