a-a a-b aaa aab aad aag aah aan aao ab- aba abb abd abg abh abn abo ad- ada adb add adg adh adn ado ag- aga agb agd agg agh agn ago aha ahb ahd ahg ahh ahn aho an- ana anb and ang anh ann ano aoa aob aod aog aoh aon aoo baa bab bad bag bah ban bao bba bbb bbd bbg bbh bbn bbo bda bdb bdd bdg bdh bdo bga bgb bgd bgg bgh bgn bgo bha bhb bhd bhg bhh bho bna bnb bnd bng bnn bno boa bob bod bog boh bon boo daa dab dad dag dah dan dao dba dbb dbd dbg dbh dbn dbo dda ddb ddd ddg ddh ddn ddo dga dgd dgg dgh dgn dh- dha dhb dhd dhh dho dna dnb dnd dng dnh dnn dno doa dob dod dog doh don doo g-d gaa gab gad gag gah gan gao gba gbd gbg gbh gbn gbo gda gdb gdd gdh gdn gdo gga ggb ggd ggg ggh ggn ggo gha ghb ghd ghg ghh ghn gho gna gnb gnd gnn gno goa gob god gog goh gon goo haa hab had hag hah han hao hba hbb hbd hbg hbh hbn hbo hda hdb hdd hdg hdh hdn hdo hga hgb hgg hgh hgn hgo hha hhb hhd hhg hhh hhn hho hna hnb hnd hng hnh hnn hno hoa hob hod hog hoh hon hoo naa nab nad nag nah nan nao nba nbb nbd nbg nbn nbo nda ndb ndd ndg ndh ndn ndo nga ngb ngd ngg ngh ngn ngo nha nhb nhd nhg nhh nhn nna nnb nng nnh nnn nno no- noa nob nod nog noh non noo oaa oab oad oag oah oan oao ob- oba obb obd obg obh obn obo oda odb odd odg odh odn odo oga ogd ogg ogh ogn ogo oha ohd ohg ohh ohn oho on- ona onb ond ong onh onn ono oo- ooa oob ood oog ooh oon ooo