-er -ol ddd dde ddi ddl ddm ddo ddp ddr dds de- ded dee dei del dem deo dep der des di- did die dii dil dim dio dip dir dis dl- dld dle dli dll dlm dlo dlp dlr dls dmd dme dmi dml dmm dmo dmp dmr dms dod doe doi dol dom doo dop dor dos dpd dpe dpi dpl dpm dpo dpp dpr dps drd dre dri drl drm dro drp drr drs dsd dse dsi dsl dsm dso dsp dsr dss ed- edd ede edi edl edm edo edp edr eds eed eee eel eem eeo eep eer ees eid eie eii eil eim eio eip eir eis eld ele eli ell elm elo elp elr els em- emd eme emi eml emm emo emp emr ems eo- eod eoe eoi eol eom eoo eop eor eos ep- epd epe epi epl epm epo epp epr eps erd ere eri erl erm ero erp err ers es- esd ese esi esl esm eso esp esr ess i-d idd ide idi idl idm ido idp idr ids ie- ied iee iei iel iem iep ier ies iid iie iii iil iim iio iip iir iis il- ild ile ili ill ilm ilo ilp ilr ils im- imd ime imi iml imm imo imp ims io- iod ioe ioi iol iom ioo iop ior ios ipd ipe ipi ipl ipm ipo ipp ipr ips ir- ird ire iri irl irm iro irp irr irs is- isd ise isi isl ism iso isp isr iss l-p ldd lde ldi ldl ldm ldo ldp ldr lds led lee lei lel lem leo lep ler les lid lie lii lil lim lio lip lir lis lld lle lli lll llm llo llp llr lls lmd lme lmi lml lmm lmo lmp lmr lms lod loe loi lol lom loo lop lor los lpd lpe lpi lpl lpm lpo lpp lpr lps lrd lri lrm lro lrp lrr lrs lsd lse lsi lsl lsm lso lsp lsr lss m-o m-r mdd mde mdi mdl mdm mdo mdp mdr mds med mee mei mel mem meo mep mer mes mi- mid mie mii mil mim mio mip mir mis mld mle mli mll mlm mlo mlp mlr mls mmd mme mmi mml mmm mmo mmp mmr mms mod moe moi mol mom moo mop mor mos mpd mpe mpi mpl mpm mpo mpp mpr mps mrd mre mri mrl mrm mro mrp mrr mrs msd mse msi msl msm mso msp msr mss o-i odd ode odi odl odm odo odp odr ods oed oee oei oel oem oeo oep oer oes oid oie oii oil oim oio oip oir ois old ole oli oll olm olo olp ols om- omd ome omi oml omm omo omp omr oms oo- ood ooi ool oom ooo oop oor oos op- opd ope opi opl opm opo opp opr ops or- ord ore ori orl orm oro orp orr ors os- osd ose osi osl osm oso osp osr oss p-p pdd pde pdi pdl pdm pdo pdp pdr pds ped pee pei pel pem peo pep per pes pid pie pii pil pim pio pip pir pis pld ple pli pll plm plo plp plr pls pmd pme pmi pml pmm pmo pmp pmr pms pod poe poi pol pom poo pop por pos ppd ppe ppi ppl ppm ppo ppp ppr pps prd pre pri prl prm pro prp prr prs ps- psd pse psi psl psm pso psp psr pss rdd rde rdi rdl rdm rdo rdp rdr rds re- red ree rei rel rem reo rep rer res rid rie rii ril rim rio rip rir ris rld rle rli rll rlm rlo rlp rlr rls rmd rme rmi rml rmm rmo rmp rmr rms rod roe roi rol rom roo rop ror ros rpd rpe rpi rpl rpm rpo rpp rpr rps rrd rri rrl rrm rrp rrr rrs rsd rse rsi rsl rsm rso rsp rsr rss sdd sde sdi sdl sdm sdo sdp sdr sds se- sed see sei sel sem seo sep ser ses sid sie sii sil sim sio sip sir sis sld sle sli sll slm slo slp slr sls smd sme smi sml smm smo smp smr sms sod soe soi sol som soo sop sor sos spd spe spi spl spm spo spp spr sps sr- srd sre sri srl srm sro srp srr srs ss- ssd sse ssi ssl ssm sso ssp ssr sss