-er a-a a-i aaa aad aae aag aai aar aas ad- ada add ade adg adi adr ads aea aed aee aeg aei aer aes ag- aga agd age agg agi agr ags ai- aia aid aie aig aii air ais ar- ara ard are arg ari arr ars as- asa asd ase asg asi asr ass daa dad dae dag dai dar das dda ddd dde ddg ddi ddr dds de- dea ded dee deg dei der des dga dgd dge dgg dgi dgr dgs di- dia did die dig dii dir dis dra drd dre drg dri drr drs dsa dsd dse dsg dsi dsr dss eaa ead eae eag eai ear eas ed- eda edd ede edg edi edr eds eea eed eee eeg eer ees ega egd ege egg egi egr egs eia eid eie eig eii eir eis era erd ere erg eri err ers es- esa esd ese esg esi esr ess g-d gaa gad gae gag gai gar gas gda gdd gde gdi gdr gds ge- gea ged gee geg gei ger ges gga ggd ggg ggi ggr ggs gia gid gie gig gii gir gis gra grd gre grg gri grr grs gsa gsd gse gsg gsi gsr gss i-d ia- iaa iad iae iag iai iar ias ida idd ide idg idi idr ids ie- iea ied iee ieg iei ier ies iga igd ige igg igi igr igs iia iid iie iii iir iis ir- ira ird ire irg iri irr irs is- isa isd ise isg isi isr iss ra- raa rad rae rag rai rar ras rda rdd rde rdg rdi rdr rds re- rea red ree reg rei rer res rga rgd rge rgg rgi rgr rgs ria rid rie rig rii rir ris rra rrd rrg rri rrr rrs rsa rsd rse rsg rsi rsr rss saa sad sae sag sai sar sas sda sdd sde sdg sdi sdr sds se- sea sed see seg sei ser ses sga sgd sge sgg sgi sgr sgs sia sid sie sig sii sir sis sr- sra srd sre srg sri srr srs ss- ssa ssd sse ssg ssi ssr sss