dGGGGGGGP   GGGGGGGGb  dP     dP   GGGGGGGGb 
      .dG'   GG         GG     GG   GG        
    .dG'    aGGaaaa     GG    .GP  aGGaaaa    
  .dG'       GG         GG    dG'   GG        
 dG'         GG         GG  .dGP    GG        
 YGGGGGGGP   GGGGGGGGP  GGGGGG'     dP