a-a a-i aaa aad aaf aag aai aao aar aas ad- ada add adf adg adi ado adr ads af- afa afd aff afg afi afo afr afs ag- aga agd agf agg agi ago agr ags ai- aia aid aif aig aii aio air ais aoa aod aof aog aoi aoo aor aos ar- ara ard arf arg ari aro arr ars as- asa asd asf asg asi aso asr ass daa dad daf dag dai dao dar das dda ddd ddf ddg ddi ddo ddr dds dfa dfd dff dfg dfi dfo dfr dfs dga dgd dgf dgg dgi dgr dgs di- dia did dif dig dii dio dir dis doa dod dof dog doi doo dor dos dra drd drg dri dro drr drs dsa dsd dsf dsg dsi dso dsr dss faa fad faf fag fai fao far fas fda fdd fdf fdg fdi fdo fdr fds ffa ffd fff ffg ffi ffo ffr ffs fga fgd fgf fgg fgi fgr fgs fia fid fif fig fii fir fis foa fof fog foi foo for fos fra frd frf frg fri fro frr frs fsa fsd fsf fsg fsi fso fsr fss g-d gaa gad gaf gag gai gao gar gas gda gdd gdf gdi gdo gdr gds gfa gfd gff gfi gfo gfr gfs gga ggd ggg ggi ggo ggr ggs gia gid gif gig gii gio gir gis goa god gof gog goi goo gor gos gra grd grf grg gri gro grr grs gsa gsd gsf gsg gsi gso gsr gss i-d i-f ia- iaa iad iaf iag iai iao iar ias ida idd idf idg idi ido idr ids ifa ifd iff ifg ifi ifo ifr ifs iga igd igf igg igi igo igr igs iia iid iif iii iio iir iis io- ioa iod iof iog ioi ioo ior ios ir- ira ird irf irg iri iro irr irs is- isa isd isf isg isi iso isr iss o-i oaa oad oaf oag oai oao oar oas oda odd odf odg odi odo odr ods of- ofa ofd off ofg ofi ofo ofr ofs oga ogd ogf ogg ogi ogo ogs oia oid oif oii oio oir ois oo- ooa ood oof oog ooi ooo oor oos or- ora ord orf org ori oro orr ors os- osa osd osf osg osi oso osr oss ra- raa rad raf rag rai rao rar ras rda rdd rdf rdg rdi rdo rdr rds rfa rfd rff rfg rfi rfo rfr rfs rga rgd rgf rgg rgi rgo rgr rgs ria rid rif rig rii rio rir ris roa rod rof rog roi roo ror ros rra rrd rrf rrg rri rrr rrs rsa rsd rsf rsg rsi rso rsr rss saa sad saf sag sai sao sar sas sda sdd sdf sdg sdi sdo sdr sds sfa sfd sff sfg sfi sfo sfr sfs sga sgd sgf sgg sgi sgo sgr sgs sia sid sif sig sii sio sir sis soa sod sof sog soi soo sor sos sr- sra srd srf srg sri sro srr srs ss- ssa ssd ssf ssg ssi sso ssr sss