a-a aaa aad aaf aag aan aao aar aas ad- ada add adf adg adn ado adr ads af- afa afd aff afg afn afo afr afs ag- aga agd agf agg agn ago agr ags an- ana and anf ang ann ano anr ans aoa aod aof aog aon aoo aor aos ar- ara ard arf arg arn aro arr ars as- asa asd asf asg asn aso asr ass daa dad daf dag dan dao dar das dda ddd ddf ddg ddn ddo ddr dds dfa dfd dff dfg dfn dfo dfr dfs dga dgd dgf dgg dgn dgr dgs dna dnd dnf dng dnn dno dnr dns doa dod dof dog don doo dor dos dra drd drg drn dro drr drs dsa dsd dsf dsg dsn dso dsr dss faa fad faf fag fan fao far fas fda fdd fdf fdg fdn fdo fdr fds ffa ffd fff ffg ffn ffo ffr ffs fga fgd fgf fgg fgn fgr fgs fna fnd fnf fng fnn fnr fns foa fof fog fon foo for fos fra frd frf frg frn fro frr frs fsa fsd fsf fsg fsn fso fsr fss g-d gaa gad gaf gag gan gao gar gas gda gdd gdf gdn gdo gdr gds gfa gfd gff gfo gfr gfs gga ggd ggg ggn ggo ggr ggs gna gnd gnf gnn gno gnr gns goa god gof gog gon goo gor gos gra grd grf grg grn gro grr grs gsa gsd gsf gsg gsn gso gsr gss naa nad naf nag nan nao nar nas nda ndd ndf ndg ndn ndo ndr nds nfa nfd nff nfn nfo nfr nfs nga ngd ngf ngg ngn ngo ngs nna nnf nng nnn nno nns no- noa nod nof nog non noo nor nos nra nrd nrf nrg nrn nro nrr nrs nsa nsd nsf nsg nsn nso nsr nss oaa oad oaf oag oan oao oar oas oda odd odf odg odn odo odr ods of- ofa ofd off ofg ofn ofo ofr ofs oga ogd ogf ogg ogn ogo ogs on- ona ond onf ong onn ono onr ons oo- ooa ood oof oog oon ooo oor oos or- ora ord orf org orn oro orr ors os- osa osd osf osg osn oso osr oss ra- raa rad raf rag ran rao rar ras rda rdd rdf rdg rdn rdo rdr rds rfa rfd rff rfg rfn rfo rfr rfs rga rgd rgf rgg rgn rgo rgr rgs rna rnd rng rnn rno rnr rns roa rod rof rog ron roo ror ros rra rrd rrf rrg rrn rrr rrs rsa rsd rsf rsg rsn rso rsr rss saa sad saf sag san sao sar sas sda sdd sdf sdg sdn sdo sdr sds sfa sfd sff sfg sfn sfo sfr sfs sga sgd sgf sgg sgn sgo sgr sgs sna snd snf sng snn sno snr sns soa sod sof sog son soo sor sos sr- sra srd srf srg srn sro srr srs ss- ssa ssd ssf ssg ssn sso ssr sss