a-a a-b aaa aab aad aag aah aao aas ab- aba abb abd abg abh abo abs ad- ada adb add adg adh ado ads ag- aga agb agd agg agh ago ags aha ahb ahd ahg ahh aho ahs aoa aob aod aog aoh aoo aos as- asa asb asd asg ash aso ass baa bab bad bag bah bao bas bba bbb bbd bbg bbh bbo bbs bda bdb bdd bdg bdh bdo bds bga bgb bgd bgg bgh bgo bgs bha bhb bhd bhg bhh bho bhs boa bob bod bog boh boo bos bsa bsb bsd bsg bsh bso bss daa dab dad dag dah dao das dba dbb dbd dbg dbh dbo dbs dda ddb ddd ddg ddh ddo dds dga dgd dgg dgh dgs dh- dha dhb dhd dhh dho dhs doa dob dod dog doh doo dos dsa dsb dsd dsg dsh dso dss g-d gaa gab gad gag gah gao gas gba gbd gbg gbh gbo gbs gda gdb gdd gdh gdo gds gga ggb ggd ggg ggh ggo ggs gha ghb ghd ghg ghh gho ghs goa gob god gog goh goo gos gsa gsb gsd gsg gso gss haa hab had hag hah hao has hba hbb hbd hbg hbh hbo hbs hda hdb hdd hdg hdh hdo hds hga hgb hgg hgh hgo hgs hha hhb hhd hhg hhh hho hhs hoa hob hod hog hoh hoo hos hsa hsb hsd hsg hsh hss oaa oab oad oag oah oao oas ob- oba obb obd obg obh obo obs oda odb odd odg odh odo ods oga ogd ogg ogh ogo ogs oha ohd ohg ohh oho ohs oo- ooa oob ood oog ooh ooo oos os- osa osb osd osg osh oso oss saa sab sad sag sah sao sas sba sbb sbd sbg sbh sbo sbs sda sdb sdd sdg sdh sdo sds sga sgb sgd sgg sgh sgo sgs sh- sha shb shd shg shh sho shs soa sob sod sog soh soo sos ss- ssa ssb ssd ssg ssh sso sss