bnnbg cnnbg2 dnnb ennbg fnnbg2
0dobg2 1dob 2dobg 3dobg2 4dob
p4ob q4obg r4obg2 s4ob t4obg
evpbg fvpbg2 gvpb hvpbg ivpbg2
3lqbg2 4lqb 5lqbg 6lqbg2 7lqb