a-a aaa aad aaf aag aao aar aas ad- ada add adf adg ado adr ads af- afa afd aff afg afo afr afs ag- aga agd agf agg ago agr ags aoa aod aof aog aoo aor aos ar- ara ard arf arg aro arr ars as- asa asd asf asg aso asr ass daa dad daf dag dao dar das dda ddd ddf ddg ddo ddr dds dfa dfd dff dfg dfo dfr dfs dga dgd dgf dgg dgr dgs doa dod dof dog doo dor dos dra drd drg dro drr drs dsa dsd dsf dsg dso dsr dss faa fad faf fag fao far fas fda fdd fdf fdg fdo fdr fds ffa ffd fff ffg ffo ffr ffs fga fgd fgf fgg fgr fgs foa fof fog foo for fos fra frd frf frg fro frr frs fsa fsd fsf fsg fso fsr fss g-d gaa gad gaf gag gao gar gas gda gdd gdf gdo gdr gds gfa gfd gff gfo gfr gfs gga ggd ggg ggo ggr ggs goa god gof gog goo gor gos gra grd grf grg gro grr grs gsa gsd gsf gsg gso gsr gss oaa oad oaf oag oao oar oas oda odd odf odg odo odr ods of- ofa ofd off ofg ofo ofr ofs oga ogd ogf ogg ogo ogs oo- ooa ood oof oog ooo oor oos or- ora ord orf org oro orr ors os- osa osd osf osg oso osr oss ra- raa rad raf rag rao rar ras rda rdd rdf rdg rdo rdr rds rfa rfd rff rfg rfo rfr rfs rga rgd rgf rgg rgo rgr rgs roa rod rof rog roo ror ros rra rrd rrf rrg rrr rrs rsa rsd rsf rsg rso rsr rss saa sad saf sag sao sar sas sda sdd sdf sdg sdo sdr sds sfa sfd sff sfg sfo sfr sfs sga sgd sgf sgg sgo sgr sgs soa sod sof sog soo sor sos sr- sra srd srf srg sro srr srs ss- ssa ssd ssf ssg sso ssr sss