a-a aaa aad aaf aag aan aao aas ad- ada add adf adg adn ado ads af- afa afd aff afg afn afo afs ag- aga agd agf agg agn ago ags an- ana and anf ang ann ano ans aoa aod aof aog aon aoo aos as- asa asd asf asg asn aso ass daa dad daf dag dan dao das dda ddd ddf ddg ddn ddo dds dfa dfd dff dfg dfn dfo dfs dga dgd dgf dgg dgn dgs dna dnd dnf dng dnn dno dns doa dod dof dog don doo dos dsa dsd dsf dsg dsn dso dss faa fad faf fag fan fao fas fda fdd fdf fdg fdn fdo fds ffa ffd fff ffg ffn ffo ffs fga fgd fgf fgg fgn fgs fna fnd fnf fng fnn fns foa fof fog fon foo fos fsa fsd fsf fsg fsn fso fss g-d gaa gad gaf gag gan gao gas gda gdd gdf gdn gdo gds gfa gfd gff gfo gfs gga ggd ggg ggn ggo ggs gna gnd gnf gnn gno gns goa god gof gog gon goo gos gsa gsd gsf gsg gsn gso gss naa nad naf nag nan nao nas nda ndd ndf ndg ndn ndo nds nfa nfd nff nfn nfo nfs nga ngd ngf ngg ngn ngo ngs nna nnf nng nnn nno nns no- noa nod nof nog non noo nos nsa nsd nsf nsg nsn nso nss oaa oad oaf oag oan oao oas oda odd odf odg odn odo ods of- ofa ofd off ofg ofn ofo ofs oga ogd ogf ogg ogn ogo ogs on- ona ond onf ong onn ono ons oo- ooa ood oof oog oon ooo oos os- osa osd osf osg osn oso oss saa sad saf sag san sao sas sda sdd sdf sdg sdn sdo sds sfa sfd sff sfg sfn sfo sfs sga sgd sgf sgg sgn sgo sgs sna snd snf sng snn sno sns soa sod sof sog son soo sos ss- ssa ssd ssf ssg ssn sso sss