dP     dP  dP   dP   dP  dGGGGGGGP  .dGGGGGb  
 GG     GG  GG   GG   GG       .dG'  GG.    "' 
 GG    .GP  GG  .GP  .GP     .dG'    `YGGGGGb. 
 GG    dG'  GG  dG'  dG'   .dG'            `Gb 
 GG  .dGP   GG.dGPG.dGP   dG'        dG'   .GP 
 GGGGGG'    GGGG' YGG'    YGGGGGGGP   YGGGGGP