a-a a-b aaa aab aag aaj aao aau ab- aba abb abg abj abo abu ag- aga agb agg agj ago agu aja ajb ajj ajo aju aoa aob aog aoj aoo aou au- aua aub aug auj auo b-u baa bab bag baj bao bau bba bbb bbg bbo bbu bga bgb bgg bgo bgu bja bjg bjj bju boa bob bog boj boo bou bua bub bug buj buo buu gaa gab gag gaj gao gau gba gbg gbj gbo gbu gga ggb ggg ggj ggo ggu gja gjg goa gob gog goo gou gu- gua gub gug guj guo guu jaa jab jag jaj jao jau jba jbg jbj jbo jbu jga jgb jgo jgu jja jjb jjg jjj jju joa job jog joj joo jou jub jug juo oaa oab oag oaj oao oau ob- oba obb obg obj obo obu oga ogg ogo oja ojb ojo oju oo- ooa oob oog ooo ou- oua ouo ua- uaa uab uag uaj uao uau uba ubb ubg ubo ubu uga ugb ugg ugo ugu ujo uoa uob uog uoj uoo uua uug uuu