a-a a-b a-q aaa aab aag aah aaq aar ab- aba abb abg abh abq abr ag- aga agb agg agh agq agr aha ahb ahg ahh ahq ahr aqa aqr ar- ara arb arg arh arq arr baa bab bag bah baq bar bba bbb bbg bbh bbq bbr bga bgb bgg bgh bgr bha bhb bhg bhh bhq bhr bra brb brg brh brq brr gaa gab gag gah gar gba gbg gbh gbr gga ggb ggg ggh ggr gha ghb ghg ghh ghq ghr gra grb grg grh grq grr haa hab hag hah haq har hba hbb hbg hbh hbr hga hgb hgg hgh hgr hha hhb hhg hhh hhr hr- hra hrb hrg hrh hrr qaa qag qah qar qba qbq qga qqq qra qrb qrg qrh ra- raa rab rag rah raq rar rba rbb rbg rbh rbr rga rgb rgg rgh rgr rh- rha rhb rhg rhh rhr rra rrb rrg rrh rrq rrr