a-a a-b aaa aab aad aag aah aao aau ab- aba abb abd abg abh abo abu ad- ada adb add adg adh ado adu ag- aga agb agd agg agh ago agu aha ahb ahd ahg ahh aho ahu aoa aob aod aog aoh aoo aou au- aua aub aud aug auh auo b-u baa bab bad bag bah bao bau bba bbb bbd bbg bbh bbo bbu bda bdb bdd bdg bdh bdo bdu bga bgb bgd bgg bgh bgo bgu bha bhb bhd bhg bhh bho bhu boa bob bod bog boh boo bou bua bub bud bug buh buo buu daa dab dad dag dah dao dau dba dbb dbd dbg dbh dbo dbu dda ddb ddd ddg ddh ddo ddu dga dgd dgg dgh dgu dh- dha dhb dhd dhh dho dhu doa dob dod dog doh doo dou dua dub dud dug duh duo g-d gaa gab gad gag gah gao gau gba gbd gbg gbh gbo gbu gda gdb gdd gdh gdo gdu gga ggb ggd ggg ggh ggo ggu gha ghb ghd ghg ghh gho goa gob god gog goh goo gou gu- gua gub gud gug guo guu haa hab had hag hah hao hau hba hbb hbd hbg hbh hbo hbu hda hdb hdd hdg hdh hdo hdu hga hgb hgg hgh hgo hgu hha hhb hhd hhg hhh hho hhu hoa hob hod hog hoh hoo hou hua hub hud hug huh huo huu oaa oab oad oag oah oao oau ob- oba obb obd obg obh obo obu oda odb odd odg odh odo odu oga ogd ogg ogh ogo oha ohd ohg ohh oho ohu oo- ooa oob ood oog ooh ooo ou- oua oud ouh ouo ua- uaa uab uad uag uah uao uau uba ubb ubg ubh ubo ubu uda udb udd udg udo udu uga ugb ugg ugh ugo ugu uha uhb uhd uhh uho uhu uoa uob uod uog uoo uua uug uuu