-er ddd dde ddg ddi ddk ddm ddo ddr de- ded dee deg dei dek dem deo der dgd dge dgg dgi dgk dgm dgr di- did die dig dii dik dim dio dir dke dkg dki dkk dkm dko dkr dmd dme dmg dmi dmk dmm dmo dmr dod doe dog doi dok dom doo dor drd dre drg dri drk drm dro drr ed- edd ede edg edi edk edm edo edr eed eee eeg eek eem eeo eer egd ege egg egi egm ego egr eid eie eig eii eik eim eio eir ekd eke ekg eki eko ekr em- emd eme emg emi emk emm emo emr eo- eod eoe eog eoi eok eom eoo eor erd ere erg eri erk erm ero err g-d gdd gde gdi gdk gdm gdo gdr ge- ged gee geg gei gek gem geo ger ggd ggg ggi ggm ggo ggr gid gie gig gii gik gim gio gir gkd gkm gko gmd gme gmg gmi gmm gmo gmr god goe gog goi gok gom goo gor grd gre grg gri grk grm gro grr i-d idd ide idg idi idk idm ido idr ie- ied iee ieg iei iek iem ier igd ige igg igi igk igm igo igr iid iie iii iim iio iir ike iki ikk iko ikr im- imd ime img imi imm imo io- iod ioe iog ioi iom ioo ior ir- ird ire irg iri irk irm iro irr kde kdg kdk kdm kdo kdr ke- ked kee keg kei kek kem keo ker kgd kgi kgm kgo kid kie kig kii kik kim kio kir kke kki kkk kkm kkr kmd kme kmg kmi kmk kmm kmo kod koe kog koi kok kom koo kor krd krg kri krk kro krr m-o m-r mdd mde mdg mdi mdk mdm mdo mdr med mee meg mei mek mem meo mer mgd mge mgi mgk mgm mgo mgr mi- mid mie mig mii mik mim mio mir mkd mke mkg mkk mkm mko mkr mmd mme mmg mmi mmk mmm mmo mmr mod moe mog moi mok mom moo mor mrd mre mrg mri mrk mrm mro mrr o-i odd ode odg odi odm odo odr oed oee oeg oei oem oeo oer ogd oge ogg ogi ogo oid oie oii oik oim oio oir okd oke okg oki okk oko okr om- omd ome omg omi omm omo omr oo- ood oog ooi ook oom ooo oor or- ord ore org ori ork orm oro orr rdd rde rdg rdi rdm rdo rdr re- red ree reg rei rek rem reo rer rgd rge rgg rgi rgk rgo rgr rid rie rig rii rik rim rio rir rke rkg rkk rkm rko rmd rme rmg rmi rmm rmo rmr rod roe rog roi rok rom roo ror rrd rrg rri rrk rrm rrr