-er a-a a-i aaa aad aae aag aai aao aar ad- ada add ade adg adi ado adr aea aed aee aeg aei aeo aer ag- aga agd age agg agi ago agr ai- aia aid aie aig aii aio air aoa aod aoe aog aoi aoo aor ar- ara ard are arg ari aro arr daa dad dae dag dai dao dar dda ddd dde ddg ddi ddo ddr de- dea ded dee deg dei deo der dga dgd dge dgg dgi dgr di- dia did die dig dii dio dir doa dod doe dog doi doo dor dra drd dre drg dri dro drr eaa ead eae eag eai eao ear ed- eda edd ede edg edi edo edr eea eed eee eeg eeo eer ega egd ege egg egi ego egr eia eid eie eig eii eio eir eo- eoa eod eoe eog eoi eoo eor era erd ere erg eri ero err g-d gaa gad gae gag gai gao gar gda gdd gde gdi gdo gdr ge- gea ged gee geg gei geo ger gga ggd ggg ggi ggo ggr gia gid gie gig gii gio gir goa god goe gog goi goo gor gra grd gre grg gri gro grr i-d ia- iaa iad iae iag iai iao iar ida idd ide idg idi ido idr ie- iea ied iee ieg iei ier iga igd ige igg igi igo igr iia iid iie iii iio iir io- ioa iod ioe iog ioi ioo ior ir- ira ird ire irg iri iro irr o-i oaa oad oae oag oai oao oar oda odd ode odg odi odo odr oea oed oee oeg oei oeo oer oga ogd oge ogg ogi ogo oia oid oie oii oio oir oo- ooa ood oog ooi ooo oor or- ora ord ore org ori oro orr ra- raa rad rae rag rai rao rar rda rdd rde rdg rdi rdo rdr re- rea red ree reg rei reo rer rga rgd rge rgg rgi rgo rgr ria rid rie rig rii rio rir roa rod roe rog roi roo ror rra rrd rrg rri rrr