dP          aGGGGGb.  dGGGGGGGP   .GGGGG.  
 GG         dG'   `GG       .dG'  dG'   `GG 
 GG         GG            .dG'    GG        
 GG         GG          .dG'      GG   YPGG 
 GG         YG.   .GG  dG'        YG.   .GG 
 GGGGGGGGP   YGGGGGP'  YGGGGGGGP   `GGGGG'