a-a a-b aaa aab aaj aao aau ab- aba abb abj abo abu aja ajb ajj ajo aju aoa aob aoj aoo aou au- aua aub auj auo b-u baa bab baj bao bau bba bbb bbo bbu bja bjj bju boa bob boj boo bou bua bub buj buo buu jaa jab jaj jao jau jba jbj jbo jbu jja jjb jjj jju joa job joj joo jou jub juo oaa oab oaj oao oau ob- oba obb obj obo obu oja ojb ojo oju oo- ooa oob ooo ou- oua ouo ua- uaa uab uaj uao uau uba ubb ubo ubu ujo uoa uob uoj uoo uua uuu