AAAA   NN    N  TTTTTTT  I         PPPPP  L        AAAA    GGGG  I   AAAA    TTTTTTT
A    A  N N   N     T     I         P   P  L       A    A  G      I  A    A      T
AAAAAA  N  N  N     T     I  =====  PPPPP  L       AAAAAA  G  GG  I  AAAAAA      T
A    A  N   N N     T     I         P      L       A    A  G   G  I  A    A      T
A    A  N    NN     T     I         P      LLLLLL  A    A   GGGG  I  A    A      T