-er -ol ddd dde ddg ddk ddl ddo ddp ddr dds de- ded dee deg dek del deo dep der des dgd dge dgg dgk dgl dgp dgr dgs dke dkg dkk dkl dko dkp dkr dks dl- dld dle dlg dlk dll dlo dlp dlr dls dod doe dog dok dol doo dop dor dos dpd dpe dpg dpk dpl dpo dpp dpr dps drd dre drg drk drl dro drp drr drs dsd dse dsg dsk dsl dso dsp dsr dss ed- edd ede edg edk edl edo edp edr eds eed eee eeg eek eel eeo eep eer ees egd ege egg egl ego egp egr egs ekd eke ekg ekl eko ekp ekr eks eld ele elg elk ell elo elp elr els eo- eod eoe eog eok eol eoo eop eor eos ep- epd epe epg epl epo epp epr eps erd ere erg erk erl ero erp err ers es- esd ese esg esk esl eso esp esr ess g-d g-p gdd gde gdk gdl gdo gdp gdr gds ge- ged gee geg gek gel geo gep ger ges ggd ggg ggo ggp ggr ggs gkd gko gkp gks gld gle glg glk gll glo glp glr gls god goe gog gok gol goo gop gor gos gpd gpe gpg gpk gpl gpo gpp gpr gps grd gre grg grk grl gro grp grr grs gsd gse gsg gsk gsl gso gsp gsr gss kde kdg kdk kdl kdo kdp kdr kds ke- ked kee keg kek kel keo kep ker kes kgd kgl kgo kgp kgs kke kkk kkl kkp kkr kks kl- kld klg klo klr kls kod koe kog kok kol koo kop kor kos kpd kpe kpk kpl kpo kpp kpr kps krd krg krk krl kro krp krr krs ksd kse ksg ksk ksl kso ksp ksr kss l-p ldd lde ldg ldk ldl ldo ldp ldr lds led lee leg lek lel leo lep ler les lgd lge lgg lgk lgl lgo lgp lgr lgs lkg lkl lkp lkr lks lld lle llg llk lll llo llp llr lls lod loe log lok lol loo lop lor los lpd lpe lpg lpk lpl lpo lpp lpr lps lrd lrg lrk lro lrp lrr lrs lsd lse lsg lsk lsl lso lsp lsr lss odd ode odg odl odo odp odr ods oed oee oeg oel oeo oep oer oes ogd oge ogg ogl ogo ogp ogs okd oke okg okk okl oko okp okr oks old ole olg olk oll olo olp ols oo- ood oog ook ool ooo oop oor oos op- opd ope opg opk opl opo opp opr ops or- ord ore org ork orl oro orp orr ors os- osd ose osg osk osl oso osp osr oss p-p pdd pde pdg pdk pdl pdo pdp pdr pds ped pee peg pek pel peo pep per pes pgd pge pgg pgk pgl pgo pgp pgr pgs pkd pke pkg pkl pko pkp pkr pks pld ple plg plk pll plo plp plr pls pod poe pog pok pol poo pop por pos ppd ppe ppg ppk ppl ppo ppp ppr pps prd pre prg prk prl pro prp prr prs ps- psd pse psg psk psl pso psp psr pss rdd rde rdg rdl rdo rdp rdr rds re- red ree reg rek rel reo rep rer res rgd rge rgg rgk rgo rgp rgr rgs rke rkg rkk rko rkp rks rld rle rlg rll rlo rlp rlr rls rod roe rog rok rol roo rop ror ros rpd rpe rpg rpk rpl rpo rpp rpr rps rrd rrg rrk rrl rrp rrr rrs rsd rse rsg rsk rsl rso rsp rsr rss sdd sde sdg sdk sdl sdo sdp sdr sds se- sed see seg sek sel seo sep ser ses sgd sge sgg sgk sgl sgo sgp sgr sgs sk- skd ske skg skk skl sko skp skr sks sld sle slg slk sll slo slp slr sls sod soe sog sok sol soo sop sor sos spd spe spg spk spl spo spp spr sps sr- srd sre srg srk srl sro srp srr srs ss- ssd sse ssg ssk ssl sso ssp ssr sss