dddd  iiii nn  nn  gggg  aaa  ll    iiii nn  nn  gggg
dd dd  ii  nnn nn gg __ aa_aa ll     ii  nnn nn gg __
dd dd  ii  nn nnn gg gg aa aa ll     ii  nn nnn gg gg
dddd  iiii nn  nn  gggg aa aa lllll iiii nn  nn  gggg

denning@cs.georgetown.edu