a-a aaa aad aaf aag aao aar aas aau ad- ada add adf adg ado adr ads adu af- afa afd aff afg afo afr afs afu ag- aga agd agf agg ago agr ags agu aoa aod aof aog aoo aor aos aou ar- ara ard arf arg aro arr ars aru as- asa asd asf asg aso asr ass asu au- aua aud auf aug auo aur aus daa dad daf dag dao dar das dau dda ddd ddf ddg ddo ddr dds ddu dfa dfd dff dfg dfo dfr dfs dfu dga dgd dgf dgg dgr dgs dgu doa dod dof dog doo dor dos dou dra drd drg dro drr drs dru dsa dsd dsf dsg dso dsr dss dsu dua dud duf dug duo dur dus faa fad faf fag fao far fas fau fda fdd fdf fdg fdo fdr fds fdu ffa ffd fff ffg ffo ffr ffs ffu fga fgd fgf fgg fgr fgs foa fof fog foo for fos fou fra frd frf frg fro frr frs fru fsa fsd fsf fsg fso fsr fss fsu fua fud fuf fug fuo fur fus fuu g-d gaa gad gaf gag gao gar gas gau gda gdd gdf gdo gdr gds gdu gfa gfd gff gfo gfr gfs gga ggd ggg ggo ggr ggs ggu goa god gof gog goo gor gos gou gra grd grf grg gro grr grs gru gsa gsd gsf gsg gso gsr gss gsu gu- gua gud guf gug guo gur gus guu oaa oad oaf oag oao oar oas oau oda odd odf odg odo odr ods odu of- ofa ofd off ofg ofo ofr ofs ofu oga ogd ogf ogg ogo ogs oo- ooa ood oof oog ooo oor oos or- ora ord orf org oro orr ors oru os- osa osd osf osg oso osr oss osu ou- oua oud ouf ouo our ous ra- raa rad raf rag rao rar ras rau rda rdd rdf rdg rdo rdr rds rdu rfa rfd rff rfg rfo rfr rfs rfu rga rgd rgf rgg rgo rgr rgs roa rod rof rog roo ror ros rou rra rrd rrf rrg rrr rrs rru rsa rsd rsf rsg rso rsr rss rsu rua rud ruf rug ruo rur rus ruu saa sad saf sag sao sar sas sau sda sdd sdf sdg sdo sdr sds sdu sfa sfd sff sfg sfo sfr sfs sfu sga sgd sgf sgg sgo sgr sgs sgu soa sod sof sog soo sor sos sou sr- sra srd srf srg sro srr srs ss- ssa ssd ssf ssg sso ssr sss ssu sua sud suf sug suo sur sus suu ua- uaa uad uaf uag uao uar uas uau uda udd udf udg udo udr uds udu ufa ufd uff ufg ufo ufr ufs ufu uga ugf ugg ugo ugr ugs ugu uoa uod uog uoo uor uos ur- ura urd urf urg uro urr urs uru usa usd usf usg uso usr uss usu uua uug uur uus uuu